Showing posts with label Voip. Show all posts
Showing posts with label Voip. Show all posts

Monday, December 26, 2011

VOIP/SKYPE Handsfree

VOIP/SKYPE Handsfree Stereo Headset  – Recently, voice telecomunication over internet connection has become a significant rival to standard telephone line communication. VoIP Voice over internet Protocol and Skype headsets enable user to talk to business partners, suppliers and customers from everywhere in the world. due to the conversation occuring over an internet connection that’s purchased monthly the caller avoids the expense of a per-minute phone call. especially if they’re calling overseas. VoIP and Skype headsets are simple to use. simply install the neccessary software on your pc, plug in your headset and you’re ready for talk.



Introducing One of Best headset for Skype and VOIP,  VOIP/SKYPE Handsfree Stereo Headset is great for internet phone, conference calls, video games. totally compatible with: VoIP Skype / MSN / Yahoo / ICQ / AOL or internet calling. Stereo headset offers glorious bass and treble sound quality. Adjustable head band and foam ear pads offers comfortable fitting. features with adjustable volume control management on the wire. Plugs into standard 3.5mm audio jacks, for speaker and microphone. Wire Length: 78 inches 6.5 feet. can be used for laptops, MP3 players and DVD players.
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Sunday, March 8, 2009

VoIP-Pal Terminates Big Apple Agreement, Hints About New Product

voip
VoIP-PAL.com, a telecommunications products, announced the termination of an agreement between it and Big Apple Consulting USA.

“We have had many inquiries asking us if we have an investor relations firm working with us,” said Richard Kipping, chief executive officer of VoIP-PAL.com. “So to clarify, we thought we should announce that VoIP-PAL.com, Inc. suspended its agreement with BigApple Consulting USA on October 17, 2007 for a three-month period pending clarification on certain matters relating to the agreement. After an internal review we decided to terminate the agreement.”

VoIP-PAL and WorldTel Xchange Inc. announced an alliance in April. The two companies will be jointly marketing an “exciting new product” through VoIP-PAL’s Niche Sales Channel, according to a news release.

Steve Lipman, pesident of WorldTel Xchange, Inc., said, “The combination of VoIP-PAL’s relationship with the Airline Points Program and WorldTel’s new ‘1ButtontoWiFi’ patented cellular/VoIP 1-touch technology will have a tremendous impact with consumers that have accumulated thousands of unused miles.”

The new product aims to capture the “untapped market of 3.2 billion cell phones worldwide,” and is purported to turn any cell phone, PDA or Smartphone—including the iPhone—into a WiFi phone.

VoIP-PAL.com offers local and long distance voice over IP phone services for both retail and business customers, as well as turnkey solutions through its Partners for the Loyalty Transactional platform, according to officials.
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Another Free VoIP Calling Web Application

voip
Goober Networks, recently launched CallingAmerica.com, which offers web-based free VoIP calls to any landline or mobile phone in the U.S. or Canada. The Web-based offering uses Flash for the audio output & microphone input. As for the business model for "free calls" CallingAmerica.com uses advertisements on their website that you must watch before the call is initiated.


I decided to test it for myself to see how well it works. I simply went to their website, entered a phone number, and clicked the FreeCall now button, as seen here:

You'll be presented with a captcha code which you must enter to prove you are human, as seen by this clipped browser screenshot here:
 Then, you'll see an ad and a short countdown (15s or less) before you can initiate the call as seen by this clipped browser screenshot here:

 The countdown was pretty short, so surprisingly it wasn't annoying. After the countdown, the Flash application confirms your microphone source. Simply by talking into it, it detects the audio signal and then initiates the call. The call quality was pretty good - certainly on par with other web-based VoIP offerings.

I should point out that if you don't register, the calls are limited up to two minutes in duration each. Pretty useful if travelling and just want to make a quick free call. By registering for free at CallingAmerica.com, users can make an unlimited number of calls for a duration of up to 15 minutes. All in all CallingAmerica.com is worth keeping bookmarked for when you need to make a quick free call.
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Monday, February 23, 2009

Why Wait? Build Your Own Skype Gateway to Asterisk

voip
As the world awaits the much-hyped Digium commercial offering of a Skype for Asterisk gateway, we began exploring existing alternatives last week that provide the same functionality at what will no doubt be considerably less cost. The Gizmo5 solution is darn-near perfect for those that need a quick solution and don't mind spending $20 a year to let someone else wrestle with the technical complexities that invariably accompany maintenance of cross-platform gateways such as this one.We, of course, like the technical challenge that comes with the territory so today we turn our attention to Greg Dorfuss' SipToSis software which forms the lynchpin of Gizmo's offering and which lets any Asterisk user create much the same gateway at no cost other than the expense of any Skype Out calls you may choose to make.

When we're finished, you'll be able to call any Skype user in the world from any extension on your Asterisk server by entering either a Skype username or any 10-digit telephone number preceded by an 8 to take advantage of SkypeOut calling rates. You'll also be able to receive incoming calls from any Skype user on any extension of your Asterisk system. In short, what you get is a transparent interface to several hundred million Skype users from your Asterisk server.

And the time to set this up is less than 15 minutes assuming you already have one of the Nerd Vittles Orgasmatron Builds in operation. These are available for Dell PowerEdge servers, Everex gPC desktop systems and minis, and most of the new Atom-based systems. If you have a garden-variety FreePBX-based Asterisk server such as PBX in a Flash, trixbox, or Elastix, just add another 5 minutes to reconfigure a few things.
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Friday, December 12, 2008

CounterPath Launches Bria for Microsoft Outlook integrating VoIP with Outlook Contacts

voipCounterPath Corporation announced the launch of Bria for Microsoft Outlook, which integrates CounterPath's softphone technology directly into Microsoft Outlook. CounterPath also makes the popular (& free) SIP client called X-Lite.
The toolbar gives users easy access to VoIP call control aling with personal information manager (PIM) info stored within Outlook Contacts. On an inbound or outbound call, it will automatically perform a lookup of your Contacts to find a match so you can see exactly who you are calling or who is calling you. With a minimally invasive GUI that fits right into Outlook, an application that many users "live in" as party of their daily work, Bria for Microsoft Outlook will certainly have some interest.

According to Counterpath, "Appearing as part of Outlook's toolbar, the Bria plug-in provides a non-intrusive VoIP interface that does not infringe on the PIM's traditional three-pane design or workspace real estate - preserving the productivity benefits of Outlook while integrating value-added VoIP services."

"CounterPath is committed to enabling unified communications in a way that employs a user's favored application tools, preferred operating systems and devices, and existing telephone infrastructures," said Donovan Jones, President and CEO for CounterPath. "As Microsoft Outlook is one of the most utilized PC applications in the business market today, integrating our softphone into Outlook was a logical move and positions us to fulfill the strong demand that we are seeing from our existing channel partners as well as the overall market for this type of solution. Our Bria for Microsoft Outlook application is designed to increase productivity while reducing overall costs, making the softphone experience even better."

You can click-to-dial from your Outlook Contacts, but also from a scheduled Calendar meeting. You simply highlight the meeting, then click the toolbar icon and it will display the attendee participants allowing you to select & click-to-dial.


Bria for Microsoft Outlook features include:

* Direct call from email, Calendar and contact list (click-to-dial)
* Multiple simultaneous calls
* Call display
* Call transfer
* Call forwarding
* Redial
* Call Hold
* Call history
* Missed call indicator and display
* Message waiting
* Voice mail access
* Speaker phone and mute

Other features include:
- Screen pops and call handling options such as call hold, forward and
ignore
- Click-to-Dial from any location within Outlook
- Ability to manage multiple simultaneous calls
- Message waiting indicator and one-click access to voicemail

In addition to calling features, Bria for Microsoft Outlook provides support for narrow and wideband codecs, zero touch configuration during installation, auto-updates and NAT traversal using STUN and ICE. Bria for Microsoft Outlook also offers flexible branding options, allowing solution providers to incorporate their brand into the integrated VoIP-to-Outlook user experience.

Bria for Microsoft Outlook will be available for purchase at the CounterPath website beginning December 9, 2008. To learn more, head to http://counterpath.com/bria-for-microsoft-outlook.html.
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Friday, November 14, 2008

AT&T: iPhones Will Soon Connect Laptops to Web

voipIt will soon be possible for iPhone owners to tether their handsets to their computers, according to carrier AT&T. Tethering involves connecting a computer to a handset and using the phone's wireless data stream to essentially serve as the computer's modem. Last summer an application briefly appearing in Apple's online App Store offered that ability to iPhone owners, but the program was ultimately pulled.

AT&T (NYSE: T) Latest News about AT&T will soon provide an official data tethering solution for iPhone users, the carrier has confirmed. Such a solution will basically let an iPhone owner turn the handset into a modem and then connect to a Mac or PC, allowing the computer to access the Internet via the iPhone's AT&T cellular data service.

"We're working with Apple (Nasdaq: AAPL) Latest News about Apple on a tethering option for iPhone and we hope to offer it soon," Wes Warnock, a spokesperson for AT&T Mobility, told MacNewsWorld. "Can't provide any details beyond that," he added.

AT&T Mobility President and CEO Ralph De La Vega first mentioned the tethering solution in an interview with TechCrunch's Michael Arrington at the Web 2.0 Summit, though he did not elaborate.

The Past and the Future

Owners of jailbroken iPhones have long been able to tether their iPhones to notebooks and the like, but the moderate hacking required tends to run afoul of official carrier agreements and support World Class Managed Hosting from PEER 1, Just $299. Click here.. AT&T, for example, currently prohibits tethering as part of its iPhone services.

This summer, the iTunes App Store offered one application called "NetShare" by NullRiver was temporarily offered in a on-again, off-again romance with fast-acting App Store watchers. Apple put it up for sale, then took it down, posted it again, and then again removed it. While NetShare used built-in WiFi capabilities to create a tether to the Internet, it was a cumbersome solution at best -- and it appears to have been prohibited by AT&T's user agreement.

'Dumb-Proof'

In August, gadget blog Gizmodo reported an e-mail Learn how you can enhance your email marketing program today. Free Trial - Click Here. exchange between a reader and Apple CEO Steve Jobs in which the reader complained that not having a tethering option for the iPhone made little sense -- particularly since AT&T offered a tethering solution for BlackBerry for US$30 per month.

Jobs apparently agreed and noted that Apple was working on a solution.

Actually, AT&T currently supports more than three dozen phones for tethering. Still, tethering remains a solution that's geared only for savvy mobile users.

"From the standpoint of tethering, it's obviously, 'Those people who are technically capable ... do.' I have a Nokia (NYSE: NOK) Latest News about Nokia N95, which is a 3G Latest News about 3G phone. I can tether using Bluetooth Latest News about Bluetooth or tether with a cable, but it's not for the faint of heart -- it's not for your usual user," William Ho, research director of wireless services for Current Analysis Latest News about Current Analysis, told MacNewsWorld.

"So for a slice of the 3G iPhone users, they have to be pretty astute -- unless Apple comes out with some utility that makes it dumb-proof," he added.

The Dollars and Sense

In addition to the complexity, there's at least two other possible reasons the iPhone hasn't had a tethering option since Day 1. The first is that AT&T may have been concerned that its networks would not have been able to handle a rapid influx of Internet data use. The flood of customers that scooped up new iPhone 3Gs when the devices first went on sale taxed the network enough. Adding to the mix laptops using iPhones as modems may have been too much to handle at once.

The second is that AT&T has a more expensive LaptopConnect service offering, which is focused on laptop mobility for professionals. It works with a dedicated card or USB stick.

"To some extent, it cannibalizes the AirCard stuff, for which they get $60 a month," Ho explained. The existing mandatory $30 data plan for the iPhone, plus another $30 for a tethering solution, would come to $60 per month for a dedicated laptop mobility Internet service charge, he said.

"From the carriers' perspective, they want to make themselves whole" by offering complete services without hurting existing revenue streams, he continued.

In the Enterprise

From the perspective of an IT manager in the enterprise, the potential cost savings may not be particularly attractive. If mobile professionals increase their support calls with a tethering option, a dedicated laptop connection solution would remain the smarter way to go.

"Don't forget, the Bold is the first 3G BlackBerry out there, so even if you tethered, it was on EDGE," Ho said.

Plus, "With tethering, it's not like you're going to get almost equivalent utility from an AirCard, because the newer AirCards are HSPA (High-Speed Packet Access) AirCards, and in the CDMA (Code Division Multiple Access) world, they are mostly EVDO (Evolution-Data Optimized) Rev A AirCards, and the difference is you get better latency characteristics and a better uplink. So HSPA gives you a higher uplink vs the iPhone, which is just HSDPA (High-Speed Downlink Packet Access)," he explained.

Regardless of the speed, blog chatter and the brouhaha over the NullRiver reversals has previously shown there is demand from savvy iPhone owners who aren't already on a dedicated laptop connection plan.

If such a solution doesn't come before the end of 2008, there's a good chance that it would come early next year. Apple CEO Steve Jobs will most certainly appear on stage at the Macworld conference in January, an annual presentation at which he customarily introduces new products
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Monday, October 27, 2008

Setting up BLF functions on a Linksys SPA-942

voip
With the lastest firmware (v6.1.3), the Linksys SPA-942 can now suppoprt BLF on Asterisk systems. Implementing it is actually quite simple as we will see in this article. If you aren’t familair with BLF, this is called Busy Lamp Field and is used to show the status of another extension and to act as a speeddial key to that extension. While this is very handy with the Linksys SPA-962 combined with the SPA-932 sidecar, its usefullness is somewhat diminshed on the SPA-942 since you only have four line keys and each BLF configuration will use up a line key. This is still quite handy for an assistant to be able to take calls for an executive and know when it is ok to transfer calls. There are plenty of other situation where this is useful and if you find yourself needing this functionality, then it is a real nice feature to have available.


Setting up BLF
From a web browser, go to the IP address of the phone you want to configureand click on the Info tab, if the Software Version is not 6.1.3(a) or higher, you will need to go to the Linksys website and download the firmware for the phone. The update is an executable application under Windows, you enter the IP address of the phone and it will update the firmware for you. If you do not have a Windows-based system, then you will need to put the firmware on a TFTP server and program the phone to go and find the firmware.

Once the phone is on the current version, click on the Admin link on the top of the page, and then click on the Advanced link at the top of the page. Next, click on the Phone tab.

Let’s say we want to setup this phone’s line 4 key to monitor extension 200, we would then go through the following steps:

In the Line Key 4 section, set the options as follows:

Extension: Disabled
Short Name: 200 (or to any text you want)
Share Call Appearance: Shared
Extended Function: fnc=blf+sd;sub=200@$PROXY;ext=200@$PROXY

In the Extended Function field, note that the extension we are monitoring is listed in two areas.

In the next section (Line Key Extended Function section) you need to change the Server Type to Asterisk.

Finally, go to the bottom of the page and click on the Submit All Changes button. The phone will reboot and the display will now show a different icon for the fourth line. If you press the line four key, it will dial the extension you setup. If the extension you are monitoring is on a call, the line key will turn red. That’sd all there is to it.
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Sunday, August 17, 2008

MagicJack Fails to Cast a VOIP Spell

Magic
Voip
Cheap and easy phone calls sent over the Internet. That has long been the promise of VOIP services, especially on the consumer side.For some this has meant ditching their traditional telephone company and replacing it with VOIP services such as Vonage or the Ooma system that I recently reviewed. These services can provide solid phone service and considerable cost savings in the home but haven't been that portable for users who want to use VOIP anywhere.

Software-based services like Skype and the Gizmo Project provide great portability, letting users make cheap or free calls wherever a computer and a fast Internet connection exists, but they rely on software and headphones and microphones instead of using traditional phone handsets.


Hoping to fill the void between these two types of VOIP offerings is the MagicJack, a small USB dongle device that makes it possible to plug any phone into a computer and make calls over the Internet. The MagicJack device costs $39.95, which includes a phone number and a year of service (which includes unlimited calls in North America). Additional years of service can be purchased for $19.95.

When I first received the MagicJack I was intrigued by it. Even at $39.95 for a year it is still cheaper than most competing options. And if one is traveling internationally, calls made back to the United States are still free. Combined with the small USB form factor, the MagicJack seemed like a perfect solution for road warriors who may not want to rely solely on their cell phone for long trips.

However, after testing out the MagicJack I found that it comes up short in a few key areas. And while it sits somewhere between portable software services and home-based systems, this fact
alone leaves it behind both, with the MagicJack proving to be less travel-friendly than systems like Skype and Gizmo (for example, sitting at a Starbucks, it's easier to put a headset on and make a call than connect a handset to your laptop) and less grounded than home systems like Vonage (which only need a router to stay always on as opposed to MagicJack, which needs a running computer). UPDATE: Based on feedback from MagicJack, I was able to test and use MagicJack with a standard headset and without a physical phone, using the software in the same way that one uses software based phones such as Skype. However, in order to do this the MagicJack USB device does need to be plugged into the computer. Without the device the software will not launch.

From a quality standpoint the MagicJack performed well in my tests. Calls made with the device
Majic Jack sounded at least as good as most cell phone calls.
Currently the MagicJack only works on Windows systems (though according to the company a Mac version is in the works). To set it up users simply plug it into a USB port on a Windows system. If the system has autorun enabled the MagicJack will automatically install its software. If autorun is disabled, users need to open the USB drive of the MagicJack and start the install application.


The software for the MagicJack does not run directly from the device. It fully installs on the Windows system, which also makes the MagicJack less attractive for situations where one might want to use it on someone else's computer (say when visiting family). Making this even worse, there was no easy way to uninstall the software from the system, with the program not even showing up in the Windows Remove Program window. UPDATE: MagicJack confirmed that there is currently no easy way to uninstall the software. The process required to uninstall the software requires multiple Windows Registry edits and the removal of several folders on the Windows system. Based on this, I wouldn't recommend using the MagicJack on the systems of friends, family or business associates.


The Windows program itself provided a direct dial option, settings for viewing past calls and managing contacts, and an option for setting up a 911 address.


So while the MagicJack is definitely interesting, its shortcomings, at least for now, outweigh its strengths.
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Monday, August 11, 2008

Voice over Broadband Services to Boost IP Telephony Carrier Market Over the Next Five Years, According to Dell'Oro Group

IP Telepony
Voip Tutorial
REDWOOD CITY, Calif., Aug 06, 2008 (BUSINESS WIRE) -- Dell'Oro Group, the trusted source for information about the telecommunications and networking industries, recently reported that worldwide IP Telephony Carrier equipment revenues are projected to grow by an average of 9 percent per year through 2012, driven mostly by the expansion of voice over broadband (VoBB) services. We forecast that VoBB subscribers will grow almost 40 percent per year over the next five years.
"As service providers deploy broadband connections in order to grow their revenues via data and video services, they are offering voice services that leverage that broadband connection," said Greg Collins, Vice President at Dell'Oro Group. "These triple play (data, voice, and video) services are helping to drive voice over broadband services, which, in turn, are fueling the IP Telephony-Carrier market," he added.

The massive installed base of circuit switched telephone lines represents a tremendous market opportunity for IP Telephony equipment, but many service providers struggle to find a Business case for replacing their legacy, class-5 switches.
About the Report
The Dell'Oro Group 5-Year Forecast Report offers a complete overview of the IP Telephony Carrier industry with tables covering manufacturers' revenue, average selling prices, license/channel shipments for softswitches, media gateways, and session border controllers. The report also includes breakouts of high density, medium density, and low density media gateways. To purchase this report, contact Emily Kendall at +1.650.622.9400 x223 or via email at Emily@DellOro.com.
About Dell'Oro Group
As the trusted source for Market information about the networking and telecommunications industries, Dell'Oro Group provides in-depth, objective research and analysis that enable component manufacturers, equipment vendors, and investment firms to make fact-based, strategic decisions. For more information, contact Dell'Oro Group at +1.650.622.9400 or visit www.DellOro.com.
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Polycom Desktop IP Phone

 Polycom Desktop IP Phone
Voip Tutorial
SoundPoint IP 670 Delivers a Rich Voice and Visual Experience to Increase the Speed of Business
Polycom, Inc. (NASDAQ: PLCM), the leader in unified collaborative communications solutions, today announced the newest addition to its SoundPoint® IP desktop phone line, the SoundPoint IP 670. The SoundPoint IP 670 is an application-enabled desktop SIP phone with a high-performance color display, Polycom’s revolutionary HD Voice technology, and Gigabit Ethernet (GigE) connectivity. It provides professionals with an intuitive color interface for easier viewing and navigation of phone functions and productivity-enhancing applications.

The SoundPoint IP 670 also features the industry’s first color expansion module. When equipped with up to three color expansion modules, the SoundPoint IP 670 delivers the industry’s first color attendant console solution for call attendants and administrative assistants. This solution significantly increases the call handling capability of the phone and enables attendants to better manage incoming calls by being able to view presence status without having to be in front of a PC.

“Polycom’s new SoundPoint IP 670 phone is a good choice for organizations that are pursuing a standards-based communication strategy and are planning to embed applications on the phone,” said Matthias Machowinski, directing analyst with Infonetics Research. “And what’s noteworthy for power users is that it operates at 1 Gbps, so it doesn’t introduce a new congestion point on the network.”

“The SoundPoint IP 670 provides a full-color user interface to deliver a significantly augmented and visually pleasing user experience when running productivity-enhancing applications, such as the Polycom Productivity Suite,” said Victor Yue, Director, Fujitsu Asia Pte Ltd, “We applaud Polycom for enabling us to continue to offer our customers the most comprehensive, best-sounding, most interoperable, high-quality IP telephony solutions for small and medium–sized businesses and enterprises.”

The SoundPoint IP 670 supports six-lines and includes advanced SIP features and capabilities, such as support for shared lines, text messaging, and buddy presence monitoring. It features 14 default color background displays for phone personalization. Additional customized backgrounds, such as a company logo, can be added to deliver a rich desktop branding experience. The phone also includes an integrated XHTML micro-browser that enables users to take advantage of productivity-enhancing Web-based applications and also provides the ideal platform for Polycom’s recently announced Polycom Productivity Suite for SoundPoint IP phones.

As the industry’s first color expansion module, the SoundPoint IP Color Expansion Module augments the color user interface of the SoundPoint IP 670 phone. It features 14 multifunctional line keys that can be set up as line registration, call appearance, speed-dial, or a direct station select (DSS)/busy lamp field (BLF) keys. Up to three Color Expansion Modules can be snapped onto the SoundPoint IP 670 to form a full-featured color call attendant console solution. The solution supports up to 34 line registrations, 47 BLF monitored lines, and 24 concurrent calls. This enables the telephone attendant to promptly accept, screen, dispatch and effortlessly monitor incoming calls.

“We’re always seeking ways to improve the customer experience and offer productivity-enhancing features that drive the speed of business,” said Sunil Bhalla, senior vice president and general manager of Polycom’s Voice Communications Solutions division. “The SoundPoint IP 670 combines a rich color display with Polycom HD Voice to offer our customers a visually pleasing user interface, an incredible sounding voice experience and a future-proof platform with Gigabit Ethernet.”

The SoundPoint IP phone is being certified to deliver comprehensive interoperability and extensive feature support with Polycom’s growing list of more than 24 SIP-based call control platform partners including 3Com, BroadSoft, Digium, Interactive Intelligence, Sylantro, and other Polycom VoIP Interoperability Partners (VIP). For more information on the Polycom VIP Program, visit www.polycom.com/vip.

Pricing and Availability
The Power over Ethernet (PoE) version of the Polycom SoundPoint IP 670 is available in North America, most of Central and Latin America, Europe and most of Asia-Pac today through Polycom certified channel partners for an MSRP of U.S. $599. The SoundPoint IP Color Expansion Modules are available for an MSRP of $319 each. To learn more about the SoundPoint IP 670 and its Color Expansion Modules, please visit the Polycom web site at www.polycom.com/voip.

About Polycom
Polycom, Inc. is the worldwide leader in unified collaborative communications (UCC) that maximize the efficiency and productivity of people and organizations. Polycom delivers the broadest array of high definition telepresence video, wired and wireless voice, and content solutions so people can enjoy the best communications, whether from a real-time collaborative interaction or on-demand streamed video experience. Spanning from the desktop to the industry’s only immersive telepresence suite, Polycom’s high quality collaboration and communications solutions are easy to deploy and manage, as well as intuitive to use. Based on open standards, they integrate seamlessly with leading telephony and presence-based networks. With innovative market-driving technologies, a compelling vision for next generation visual communications, best-in-class products, alliance partnerships, and world-class service, Polycom is the smart choice for organizations to gain a competitive advantage with proven and trusted communication solutions. For additional information, call 800-POLYCOM or visit the Polycom web site at www.polycom.com.

Polycom reserves the right to modify future product plans at any time. Products and/or related specifications referenced in this press release are not guaranteed, and will be delivered on a when and if available basis.

Polycom, the Polycom logo, and SoundPoint are registered trademarks, and Polycom HD Voice technology is a trademark of Polycom in the U.S. and various countries. All other trademarks are the property of their respective owners. ©2008, Polycom, Inc. All rights reserved.

Contact: Robin Raulf-Sager
Polycom, Inc.
303.583.5342
robin.raulf-sager@polycom.com
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Yeastar announces Windows-Based PBX System

Voip Tutorial
Windows-Based PBX System
BizPBX is Windows-based software PBX solution, which is the world first communication system that realizes the free connection among three different networks Skype, PSTN and SIP. BizPBX business class system not only includes complete and rich functions of PBX, but also contains Instant Messaging and E-Mail system for company internal communication. The simplicity and easy-to-use of this BizPBX solution makes it especially suitable for small and medium sized company.

1. Support three kinds of trunks,PSTN,SIP and Skype.
2. Support three kinds of extensions,Analog Phone,SIP Phone, Softphone.
3. BizPBX Client software can act as Softphone.
4. BizPBX Client software accessible for every extension.
5. Contacts Listing.Internal Members Listing and displays status of every member.
6. Contacts Listing is sharable among members.
7. Internal E-Mail & Internal Instant Messenger.
8. Voice Mail:Let caller leaves voice message when you are busy or away.
9. Remote Office: Work BizPBX Client software as an extension when working in remote office.
10.Caller ID Profile:Show caller’s information in real-time.
11.Click to Call:Click on ‘name’ to call and save precious time on dialing.
12.Conference Call: Both sides are able to invite others into conference.
13.Free Interoffice Trunking: Make free calls among multiple branches through the interoffice trunking.
14.Web Call: Receive concurrent calls from website with One Skype ID.
15.Virtual Office: Apply local numbers in different countries to reach BizPBX.

Features:
Authentication
Automated Attendant
Blind Transfer
Call Booking
Call Detail Records
Call Forward
Call Monitoring
Call Parking
Call Queuing
Call Recording
Call Restriction
Call Retrieval
Call Routing
Call Transfer
Call Waiting
Call Remind CallerID
Database Integration
Dial by Name
Direct Inward System Access(DISA)
Direct Line
Do Not Disturb
Extension Group
Interactive Voice Response(IVR)
Local and Remote Call Agents
Music On Hold
Protocol Conversion
Remote Call Pickup
Remote Office Support
Roaming Extensions
Share Contacts

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Thursday, July 31, 2008

Top 50 Amazing VoIP Gadgets


They’re in your hand, on your head, around your ear, on your desk, on your lap, in your pocket, in your bag – wherever the eye can see, you’re surrounded by an ocean of gadgets. Yes, we live in a world that is increasingly revolving around smart mobile devices that are also called phones, portable music players that are a far cry in more ways than one from Sony’s famous Walkman of the 80s, compact computers that pack a punch in terms of power and speed, and accessories for each of these that are sometimes beyond the scope of our imagination. Gadgets have taken control - they’ve revolutionized the way we do business, the way we communicate, the way we socialize, in short, the way we live.


The Internet has spawned its own niche of gizmos, most of them related to Voice over Internet Protocol or VoIP, the technology that’s driving traditional telecom providers up the wall in despair. Internet telephony providers are making rapid inroads into the telecom sector, aided
and abetted by newer and more innovative tools that sell like hotcakes as soon as they hit the shelves. For every new gadget that sees the light of day, there are hundreds that fade away into the sunset and hundreds more waiting in the wings - that’s how endless this lucrative market is. And to show you a taste of what it’s like, here’s a list that features 50 of the most mind-boggling VoIP gadgets that are around today.

Handy Handsets…

The chunky telephones that characterized the days of Graham Bell have undergone a sea of change and evolved to become sleek, cool, compact and good-looking handsets today. VoIP handsets eliminate the need for separate microphones and headsets – they provide seamless integration with the call network, so much so that you hardly know the difference between a VoIP and traditional telephone call.

1. V653.Skype VoIP Phone with Skype Navigation: Connects to your computer’s USB port and allows you to make VoIP calls using Skype. Set your own ring tones to differentiate your callers!

2. USB Sky Phone with Screen Display: Another USB-enabled phone with its own sound card that allows you to record and save conversations to your computer. Advanced digital USB streaming audio is said to enhance sound quality while the LCD allows call detail display.

3. DualPhone 3088: From the Danish company RTX, this dual mode phone supports both VoIP and PSTN calls. All you have to do is connect the base station to either a broadband router or a modem.

4. Videophones 1000 and 2000: From BT in the United Kingdom, these phones are made for videoconferencing. They use a BT Broadband Talk account, and include automatic upgrades and built-in address books. The 2000 model comes with Wi-Fi capabilities.

5. Siemens OpenStage SIP Line: “The missing link that integrates cellular, the Internet and the wired desktop,” this family of phones comprises four models that support third-party applications that are based on Java, HTML, WML, and XML. The innovative TouchGuide and TouchSlider allow easy access to the menu-driven user interface and control over the speakerphone, handset and ringer volumes.P2

Wireless Wonders…

It’s becoming an increasingly wire-free world, made possible by the advent of the Infra Red and Bluetooth technologies. Tired of being tied to your desk? Longing to get out but still stay connected? Then these devices are right up your street!

6. Nokia N800 Internet Tablet: A high-end device, this smartphone provides the best of video conferencing technology using Internet telephony. Comes with a high-resolution widescreen display and integrated web camera.

7. Cisco’s iPhones: These VoIP phones made headlines because of their name – they stole a march over Apple in the iGadget terminology. Apparently Cisco had registered the name iPhone as early as the 1980s. While the two giants fight it out in the courtroom, let’s take a look at the portfolio of phones from Linksys (a subsidiary of Cisco).

Linksys CIT400 Dual-Mode Cordless Phone with Integrated Skype: The name says it all – this handset supports both VoIP and traditional telephone options. Best of all, you don’t need a computer to make calls using Skype.

Linksys Wireless-G WIP320 Phone: This one’s compatible with Skype and searches for Wi-Fi networks before it starts up completely.

8. Nokia E61: This state-of-the-art smartphone comes with both GSM and VoIP via Wi-Fi capabilities, a QWERTY keyboard, and OTAP. Over-The-Top-Provisioning allows automatic configuration through just one text message when you log in to your VoIPtalk account. Feature intelligent call forwarding that ensures you receive calls even outside Wi-Fi zones.

9. Auvi PHIP65 Dual Mode Cordless Phone: Built using the DECT technology which enhances sound quality and cuts down interference, this model comes with a Caller ID screen and speakerphone for hands-free conversations.

10. P-2000W_V2 VoIP Wi-Fi Phone: Built by Zyxel, this phone connects VoIP calls using 802.11b wireless networks.

11. TVP-SP4BK ClearSky Kit: The conference call VoIP solution from TRENDNet, this gadget comes with a Bluetooth dongle that provides clear calls up to 300 feet. Other features worth mentioning are the large LCD and button area.

12. Calypso C1250i WiFi GSM VoIP Cellular Phone: Billed as the world’s first mobile phone that supports both cellular and digital frequencies and the Wi-Fi frequency, this video phone allows you to take pictures and shoot videos besides providing video-conferencing facilities. Connects to the Inernet at high speeds.

13. EZLoop VoIP Wireless Phone:Supports voice and data on the same wireless backbone, can be tailored according to user needs.

14. F1000G and F3000: Wi-Fi handsets from Utstar that include support for three-way calling, call waiting, call transfer and 802.11b/g, SIP, SDP, RTP, DHCP and TFTP.

15. WLAN800I: This Wi-Fi set’s based on the Windows CE kernel and compatible with Skype, SIP services, MSN Talk and MSN Messenger. Connects to the Internet via an 802.11b/g wireless access point.P3

16. Kensington Vo200 Bluetooth Internet Phone: Listed on sites but not yet available for sale, this gadget fits nicely into your notebook computer’s PCMIA slot. Works only with Windows XP.

17. D-Link DPH-540 Wi-Fi VoIP Phone: Built with a cool clamshell design, this handset comes with a PsipTN-compliant tool that lets you make and receive free calls within the PsipTN network. Connects to the Web through a 802.11b/g network.

18. VP 6500 and 6000: These Wi-Fi handsets from Philips allow you not only to make and recive VoIP calls, but also stream TV to the 2.2-inch, 65,000 color screen. Calls get across using the WEP, WAP and WPA2 encryption protocols.

19. NetLink 8030 and 8020: This pair from SpectraLink claim to be “the world’s first 802.11a Wi-Fi phones.” They support 802.11a/b/g, WPA2 for increased security, text messaging through Open Application Interface (OAI), military grade shock resistance and programmable softkeys. The 8030 is water and dust-resistant and comes with rubberized grips for better durability and ergonomics.

20. AiGuru S2 VoIP Skype Handset: Set to appear later this year, this gizmo supports Skype and streaming from iTunes/WMP. The SideShow feature apparently allows you to check your mail on the display.

Mighty Mouses…

You’ve got to hand it to the guy who coined the term “mouse” for that thingamabob that helps you navigate your computer – he sure had great imagination. I mean, who would have ever associated a rodent with a computer? These devices are now being used for more than just manipulating your cursor and clicking to operate your system. Innovators are adding new-fangled features to the humble mouse to make them function as a phone and mouse – all rolled into the same small package. Whatever these VoIP mouses may or may not be, they sure are space savers on your desktop!

21. Street Mouse VoIP Handset: It looks like a car, but what it actually is is a computer mouse and VoIP handset rolled into one. Has its own “headlights” though, LEDs that light up when the phone rings.

22. Genius Navigator 380: A mouse that doubles as a clamshell phone when you wish to make or attend a call. Not only does it support GoogleTalk, Yahoo, MSN, QQ, Skype and AIM, it rolls all IMs into a single window. A cool accessory for the road with your notebook computer.

23. Sony VAIO VoIP Mouse: This one comes in a range of colors – you can pick your favorite. Claim to fame – the echo cancellation feature that provides crystal clarity in your calls! Supports Windows XP and 2000 only though, not MAC operating systems.P4

24. VM-01L from Skype-on: This is one trendy mouse – it has its own TFT display and buttons that are displayed when you flip it open. Comes with headphones that allow you to use the device as a regular mouse even as you talk away to your heart’s content.

Hip Headsets…

There are times when wireless headsets have people staring at you thinking you’re nuts to be talking to yourself, but these tiny earpieces are a boon when you need to both talk over the phone and keep your hands free for other activities, and keep the conversation to yourself of course. Some of them are now VoIP-enabled.

25. Sony Ericsson VoIP Kit and Headset: The HBH-PV705 headset from Sony Ericsson combined with a Bluetooth USB adaptor or a Bluetooth-enabled computer allows you to make VoIP calls using the VoIP Kit HBV-100.

26. Plantronics Voyager510 headset: Marketed as the first Bluetooth headset optimized for VoIP, this wireless device is one of the two products that Skype retails. Comes bundled with Skype software.

27. CY4638 VoIP Demonstration Kit: This demo kit for a VoIP headset combines a radio system-on-chip and signal delivery to provide a design that is easily replicated and can be marketed quickly.

28. nRD24V1 reference design: Just released by Nordic Semiconductor, this reference design for cost-effective USB dongle wireless headsets for VoIP applications “combines the company’s industry proven silicon with its applications expertise to provide a complete PC wireless headset solution” for VoIP. P5

Kool Keyboards…

They’re being used to do more than just type these days; you get designs that are ergonomically perfect to prevent repetitive use injuries; some come with no letters on the keys (apparently helps in typing faster); and yet others are integrating VoIP handsets into their designs.

29. A4 Tech VoIP Keyboard: Compatible with Skype, MSN, Yahoo messenger, QQ and Net2phone, this keyboard comes with the phone to the right of the keys; also has an incorporated speaker, an Audio In/Out port that allows you to connect a headset, eight Office keys and five multimedia keys.

30. USB Keyboard and Skype Handset BKBU-SKJ109/SV: This product from Buffalo bundles the handset into the standard 109-key keyboard, which in turn connects to the system through both the newer USB 2.0 standard and the phased out USB 1.1 standard.

31. Laser KB-USBBKVPU USB VoIP Keyboard: Comes with a built-in USB sound controller that eliminates the need for drivers for your speakers and microphone. Ports for headphones and microphone are located within easy reach on the keyboard. Holds 116 keys including those for shortcuts to the Internet and MS Office applications.

32. Jasco’s GE Branded VoIP Multimedia Keyboard: Winner of the 2006 CES Innovations Design and Engineering Award, this VoIP keyboard comes with hotkey software that allows you to directly control your iTunesO digital music.

Magnificent MP3 Players…

The iPod has turned the spotlight on Apple like never before. The portable MP3 player has spawned a new vocabulary for the geek set – from music to lectures, they’re all streamed straight to your ears, thanks to this snappy new gadget that’s a must-have for the hip-hop crowd. VoIP aficionados are cashing in on this cool tool’s popularity by creating MP3 players with in-built VoIP capability. Sing along with your favorite tune, or ring your favorite pal – it’s all possible with VoIP MP3 players.

33. Rimax Mystic: Pegged as the first MP3 that also serves as a VoIP headset, the Mystic retails in 512MB and 2GB sizes. Plugged into your USB port, it supports VoIP calls and also charges its batteries.

34. Median MX-400M: The music player that doubles as a VoIP mobile phone as well when connected to your computer, this product is powered by VoIP services from Callpia and MiraPhone.

35. BOXON MP3 Player: This Korean gadget automatically connects to a VoIP application when you hook up to the Internet, and allows you to share text, music, photos and video clips with friends via a 1.71-inch full-color OLED display. The makers have also thrown in capabilities that allow you to read e-books, play videos and brush up your Korean with an English-Korean dictionary. P6

Advantageous Adapters…

Don’t want to buy a phone exclusively for VoIP use? Feel a bit silly using a mouse as a phone? Just too used to the regular keyboard to opt for one that incorporates a phone as well? Or just too fond of your landline handset to turn it in for a new model? All valid reasons for you to invest in adapters that convert your regular telephone to one that can be used for VoIP calls as well.

36. Packet8 Tango Video Terminal Adapter: This one does more than just let you talk using VoIP from your landline, it comes with a sleek built-in LCD screen that conjures up a videophone from your ordinary telephone.

37. VMNF300 VoIP Telephone Adapter/Router: Use this handy tool to make outgoing calls using VoIP and receive incoming calls via your regular telephone. There’s also a PSTN lifeline which uses your PSTN line to route VoIP calls when your power is out or when your Internet connection is down.

38. SkyQube and SkyQube Square: While the former works like an adapter to connect your landline to Skype, the latter allows you to make calls using your GSM network when you insert your SIM into it.

39. Lindy USB VoIP Adapter: This one comes with a microphone and headset and lets you use your computer’s speakers for other purposes. Compatible with both Mac and Windows, this adapter has a mute button that helps eliminate backtalk.

Marvelous Miscellaneous Mechanisms…

40. Laser VoIP Station with 6 Port USB Hub: Billed as a cost-effective alternative to using a Bluetooth headset, this tool can be connected to your USB port. Besides the 6 USB ports, it has plugs for a headset and microphone, and the built-in audio chip allows you to use your computer’s soundcard for other activities such as music or game sound effects.

41. IOCell PhoneDrive: This gizmo combines storage space and VoIP – it’s a USB disk that comes equipped with VoIP capability.

42. The Elegance: True to its name, this slender touch screen flat screen monitor from Igel hosts VoIP software from a flash drive plugged into a resident USB port; the application is powered by the thin client’s software.

43. Actiontec Chatterbox: This Skype speaker phone is a USB-enabled tool that is touted as an entry-level application for conference calls. It also has a headset plug if you decide to keep the conversation private. Not too much voice clarity when more than one person talks simultaneously, but still enough if you don’t like headphones and microphones.

44. Vo300 Internet Speakerphone: From Kensington, this device has its own number pad to make dialing easier, one-touch access to Skype Voicemail and a backlit LCD that makes reading less hard on the eyes. The company is banking on the phone’s echo-cancellation feature to do the trick for them in terms of sales.

45. Logitech QuickCall USB Speakerphone: Though it looks like a pair of binoculars, there’s no doubt that this gadget is a VoIP speakerphone. The shape is apparently not for kicks, but serves a larger purpose – to remove the echo that’s a common complaint with VoIP calls. Apparently this is done using Logitech’s RightSound Technology. It uses two microphones - one on each side of the phone – to capture sound from a larger area.P7

46. Polycom Communicator: This Skype-certified device uses Polycom’s Acoustic Clarity Technology to provide clear sounds and voices; Ideal for VoIP use minus headphones and microphones.

47. Sky IPmate T-30: A plug-and-play adapter that allows you to forward your incoming Skype calls to or make VoIP calls via Skype using your mobile phone or landline.

48. Skype Hack: This experimental gadget allows you to enhance screen resolution of the 320 x 240 standard to 640 x 480 during video calls. Works only at your end, so the person at the other end will have to invest in one too.

49. ARIO Q-bean: VoIP headset, wireless media remote and wireless headphones all rolled into one funny-looking gadget from LTB Audio. Comes with its own USB dongle that connects the bean to the computer via a Bluetooth-like technology that is proprietary to LTB.

50. Vonage’s Concept Router: Complete with an integrated touch screen LCD, this wireless router/VoIP adapter is just a concept so far.

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Sipgate app brings VoIP to iPhone


Nearly a year after its release in the US, the iPhone is now able to use third party Voice over IP (VoIP) services, after sipgate.Inc announced the release of an application which enables the iPhone to natively communicate with any VoIP service, so long as it is on the industry’s standard SIP.

What this means is that now all iPhone users, are able to both make and receive VoIP calls via a Wi-Fi net connection, with a multitude of VoIP providers, once they have downloaded sipgate’s free software from their website.

sipgate Inc., have made it their goal to bring the best of telecommunication services to the general public, and the U.S. arm of the European telecoms giant is doing just that with their free software, which is designed to be highly intuitive, making it a user friendly experience.

The reason behind the move to VoIP services, is that it gives phone users the ability to call any number in the world, without having to use minutes from a wireless plan, as international call costs can be up to $3 per minutes, whereas international call costs via VoIP can be as little as $0.01 per minute.

Currently this new system is still in Beta, so sipgate are offering new users 111 minutes of VoIP for free, for calls within the U.S. only, though users will still have to pay their regular fee for Wi-Fi or VoIP subscription.

Yet another aspect to sipgate’s VoIP service, is that one person may have multiple domestic and international numbers, and calls to and from each of the different numbers, can be made using the one device, be that a VoIP compatible mobile, an iPhone, a Blackberry, or any other such device.

CEO of sipgate, Thilo Salmon, spoke about the excitement throughout the company, as Apple begin to allow the iPhone to be used for more applications, which makes sipgate’s VoIP software usable.

Salmon said that there is a love of VoIP and the iPhone at sipgate, so they are more than happy to be a part of combining the two, and plan to build on that service in the future.

Salmon hinted at further applications for businesses and users to be released later this year, saying that the company is committed to offering services that are user friendly and useful in today’s market, and suggest people be ready for further developments.
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Yahoo Messenger outsources VoIP calls to Jajah



Yahoo has announced that its Yahoo Messenger VoIP calls are to be outsourced to Jajah.

Under the terms of the agreement, the “Phone In” and “Phone Out” service will enable consumers to make low-cost PC-to-phone and phone-to-PC voice calls over the Jajah network to more than 200 countries using Yahoo Messenger. Details of the deal between the two companies have not been disclosed

Jajah will take over the provision of the telephony infrastructure, payment processing, and customer care for Yahoo’s premium voice users who make and receive voice calls through Yahoo Messenger. They have been able to make and receive voice calls on their PC to and from landline and mobile phones since 2006

Yahoo Messenger has 97 million users worldwide but it is not known how many of them pay for premium voice services. With headquarters in Silicon Valley, Jajah has attracted 10 million users in its two years of operation.

VoIP provider, Jajah, has introduced Jajah Direct, which provides VoIP calls without the need to be connected to the Internet.

Users simply call a local access number, then input the number of the phone they wish to call. Jajah Direct then sends them a number, usually by text message. When called, this number connects with the person the user wishes to talk to.

The system removes the need for headsets, or being tied to a computer, and provides free or low-rate international calls.

A Jajah account is free and can be set up over the phone. Jajah’s website - www.jajah.com - provides a local access number, and information on calling rates to both landlines and mobiles.

Jajah has expanded its infrastructure with the installation of 260 switches in 66 countries. Switches and server farms in New York City, London, Tel Aviv, and Tokyo act as master VoIP controllers.

Developing its own infrastructure allows Jajah to pass on savings to customers rather than to middlemen wholesalers and has allowed it to launch Jajah Direct.
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VoIP connection


To setup a VoIP communication we need:

1. First the ADC to convert analog voice to digital signals (bits)
2. Now the bits have to be compressed in a good format for transmission: there is a number of protocols we'll see after.
3. Here we have to insert our voice packets in data packets using a real-time protocol (typically RTP over UDP over IP)
4. We need a signaling protocol to call users: ITU-T H323 does that.
5. At RX we have to disassemble packets, extract datas, then convert them to analog voice signals and send them to sound card (or phone)
6. All that must be done in a real time fashion cause we cannot waiting for too long for a vocal answer! (see QoS section)


Base architecture

Voice )) ADC - Compression Algorithm - Assembling RTP in TCP/IP -----
----> |
<---- |
Voice (( DAC - Decompress. Algorithm - Disass. RTP from TCP/IP -----


Analog to Digital Conversion
This is made by hardware, typically by card integrated ADC.

Today every sound card allows you convert with 16 bit a band of 22050 Hz (for sampling it you need a freq of 44100 Hz for Nyquist Principle) obtaining a throughput of 2 bytes * 44100 (samples per second) = 88200 Bytes/s, 176.4 kBytes/s for stereo stream.

For VoIP we needn't such a throughput (176kBytes/s) to send voice packet: next we'll see other coding used for it.

Compression Algorithms

Now that we have digital data we may convert it to a standard format that could be quickly transmitted.

PCM, Pulse Code Modulation, Standard ITU-T G.711

* Voice bandwidth is 4 kHz, so sampling bandwidth has to be 8 kHz (for Nyquist).
* We represent each sample with 8 bit (having 256 possible values).
* Throughput is 8000 Hz *8 bit = 64 kbit/s, as a typical digital phone line.
* In real application mu-law (North America) and a-law (Europe) variants are used which code analog signal a logarithmic scale using 12 or 13 bits instead of 8 bits (see Standard ITU-T G.711).

ADPCM, Adaptive differential PCM, Standard ITU-T G.726

It converts only the difference between the actual and the previous voice packet requiring 32 kbps (see Standard ITU-T G.726).

LD-CELP, Standard ITU-T G.728
CS-ACELP, Standard ITU-T G.729 and G.729a
MP-MLQ, Standard ITU-T G.723.1, 6.3kbps, Truespeech
ACELP, Standard ITU-T G.723.1, 5.3kbps, Truespeech
LPC-10, able to reach 2.5 kbps!!

This last protocols are the most important cause can guarantee a very low minimal band using source coding; also G.723.1 codecs have a very high MOS (Mean Opinion Score, used to measure voice fidelity) but attention to elaboration performance required by them, up to 26 MIPS!

RTP Real Time Transport Protocol
Now we have the raw data and we want to encapsulate it into TCP/IP stack. We follow the structure:

VoIP data packets
RTP
UDP
IP
I,II layers

VoIP data packets live in RTP (Real-Time Transport Protocol) packets which are inside UDP-IP packets.

Firstly, VoIP doesn't use TCP because it is too heavy for real time applications, so instead a UDP (datagram) is used.

Secondly, UDP has no control over the order in which packets arrive at the destination or how long it takes them to get there (datagram concept). Both of these are very important to overall voice quality (how well you can understand what the other person is saying) and conversation quality (how easy it is to carry out a conversation). RTP solves the problem enabling the receiver to put the packets back into the correct order and not wait too long for packets that have either lost their way or are taking too long to arrive (we don't need every single voice packet, but we need a continuous flow of many of them and ordered).

Real Time Transport Protocol

0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|V=2|P|X| CC |M| PT | sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| timestamp |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| synchronization source (SSRC) identifier |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
| contributing source (CSRC) identifiers |
| .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Where:

* V indicates the version of RTP used
* P indicates the padding, a byte not used at bottom packet to reach the parity packet dimension
* X is the presence of the header extension
* CC field is the number of CSRC identifiers following the fixed header. CSRC field are used, for example, in conference case.
* M is a marker bit
* PT payload type

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Tuesday, July 15, 2008

VoIP Tutorial 5 Steps On How To Make The Switch


Unless you have been living on Mars lately, you might have known about VoIP. VoIP or Voice Over Internet Protocol is a revolutionary technology that transmits voice or audio files over the Internet. As it uses the means of the Internet to get connected, many people have seized this opportunity to enjoy unlimited long distance calls and also lower monthly phone bills.

To many who have heard of VoIP, they might not know how to get started and how much they can benefit from it. Well, in order to help you get started or make the switch, below is an easy step by step VoIP tutorial that will help you get started in choosing the best plan that is right for you or your business.

Decisions, Decisions, Decisions
First step before switching to VoIP is in making the decision as to whether you or your business really needs VoIP service. Being human, we tend to get scared of a new technology. If you think that VoIP can be really beneficial, then switching to VoIP is something that you should strongly consider. If, however, for any reason at all you think that VoIP will not benefit you, then you are missing on the greatest invention of all since sliced bread. Ask yourself this, 'Do I really want to miss out on the opportunity to enjoy unlimited long distance calls to anywhere in the world at a lower monthly rate?' If your answer is 'No', move on to the next step.

Choosing the Right Plan
The next step is to decide which plan is the best for you, your family or your business needs. Like most things new and unsure to you, it is always wise to research for the different VoIP providers on the Internet. Get active in VoIP forums and ask questions regarding anything related to VoIP.

Chances are you will get lots of different opinions as to which VoIP provider is the best. However, bear this in mind; even though different providers offer different plans, you will soon discover that it all comes down to being the same but differently packaged plan, in order to differentiate themselves from the pack. So, how does one choose?

You might want to consider your needs, wants and features by making yourself a written list for comparison. This will help you compare the different plans provided by different service providers. In a nutshell, there are a few things you might want to consider:

1. If you want to use VoIP for personal use, such as to call your family members, you might want to consider choosing a Residential Plan. It comes in two forms which are basic (a certain amount of minutes of talk time) and unlimited (for unlimited period of talk time).

2. If you own a small business, choosing a Business Plan will provide you with amenities such as fax, voicemail, multiple phones, unlimited calling plans, and so on.

With that being said, do not forget to check out with the company to find the plan that meets your requirements, as some features included in the business plans are also included in the residential plans for other providers. So, it really depends on the different service providers and how they want to package their offer. If you have questions, write them an email or call them for further information.

Setting up the System
First of all, you have to make sure that your computer system is compatible with VoIP service. If you are using broadband Internet connection you should not worry. If you are using dial-up connection you might want to switch to broadband first. Although, there are some providers that offer dial-up VoIP nowadays.

If you choose a business plan to use for your business or a call center, the best piece of advice is to leave the installation and set up to a professional who knows what he is doing. If you choose a residential plan the setting up is simple enough for most residents to do themselves. However, it is always best to leave it to a professional.

Choosing Your Own Phone Number
First, you have to decide whether you want to keep your old phone number or pick a new one. One of the best features that VoIP offers is the ability to keep your old phone number by transferring your old phone number to your new VoIP system.

Then you can select a different area code. The advantage of this is that, if you live in another state, by choosing the same area code as that of your family members and friends who do not have unlimited long distance callings, their calls will be charged as if it were a local call. This saves them money whenever they contact you.

If you are using VoIP for your business, you can benefit a lot from this too. Let’s say that your company is in New York and you have customers all over the country, by selecting your customer’s area code, you can increase your sales, as well as your productivity by having a local number for your customers to call. Nobody wants to call New York if they live somewhere in Texas. They might as well call a local company in Texas.

Installing the Features and Accessories
As mentioned before, different VoIP providers offer different plans. Therefore, it is important that you always check with the service provider of your choice for a detailed listing of all the features provided by them. For residential customers these include Call Forwarding, Caller ID, Call Block, Do Not Disturb and Voicemail. For small businesses these include free fax lines, multiphone users and web integration. So, choose your VoIP provider wisely by taking into consideration the features and services that best fit your needs.

As VoIP technology advances, many other features will be introduced on the market, not to mention accessories that you can incorporate with your VoIP service such as VoIP phones, headsets and videophones.

Choosing the right VoIP plan is not that hard. All that is required is a little bit of research yourself and choosing the one that fits your requirements. You can always upgrade it later once your requirements change. One thing for sure is that VoIP technology is continuing to advance and revolutionize the way people communicate. It is such a shame if no one is taking the advantage of this great service. So, what are you waiting for? Go ahead and jump on board the VoIP wave.

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Top 10 VoIP Providers


VoIP is a new technological phone system that is highly valued for its competitive prices and cost effectiveness. It offers many of the same calling features as regular landline services at typically no cost namely Call-Waiting, Caller ID, etc. VoIP allows users the freedom to use their high-speed Internet connection to integrate their phone, audio, video, and web browsing capabilities into one application. Because of these new trends, VoIP providers are adding new products and services daily. Here is a list and brief description of the top ten VoIP providers.

Skype
Skype is famous for their slogan, “The Whole World can Talk for Free”. Skype is a free download and users can make free calls via, Skype to Skype. For a fee, you can advance your Skype to Skype Out and make calls to landline phones. Skype In will let your choose your area code and phone number. This way, friends and relatives can call you locally, if you select the same area code. Skype is compatible with Windows, Mac, Linux, and Pocket Pc operating systems.

Vonage
Probably the most well known VoIP providers, you may be surprised to discover that Vonage is also one of the more expensive providers. Vonage offers two plans, residential and small business. Residential users may choose between the Basic 500 plan and Unlimited. The Basic 500 plan offers 500 minutes of talk time for $14.99 a month. The Premium Unlimited residential plan costs $24.99 per month.

The Small Business Basic plan costs $39.99 per month and allows 1500 minutes. The Small Business Unlimited plan costs $49.99 a month and provides unlimited calls throughout the United States, Puerto Rico, and Canada.

Dialpad
Dialpad and Yahoo have merged services. At the time of writing, Dialpad offers three plans- Dialpad Monthly 300, Dialpad Monthly 500, and Dialpad USA. The cost for Dialpad Monthly 300 is $7.50 per month, Dialpad Monthly 500 costs $9.99 per month, and Dialpad USA costs $11.99 per month.

Broadvox Direct
Broadvox Direct offers residential and small business services. Their residential services include the Residential Choice Plus plan for $9.95 per month. The Residential Choice Plus plan includes 100 outbound minutes and unlimited incoming minutes. Their Residential Unlimited Plan costs $29.95 a month and includes unlimited calling anywhere in the US and Canada. The SoHo Small Business Regional Plan costs $34.95 per month and includes 1500 monthly minutes in the US and in Canada. The SoHo Small Business Unlimited Plan costs $44.95 per month and includes unlimited calls in the US and Canada and also includes a free fax line and Yellow Page listing.

Galaxy Voice
Galaxy Voice offers two plans, Residential and Business. Their residential plan costs $19.95 a month and includes unlimited calling, Voicemail, Caller Id, Call Waiting, Call Return, Three Way Calling, and Call Forwarding. Their business plan costs $39.95 per month and includes unlimited calling, Free Voice Mail, Free Call Transfer, Free Call Forwarding, Free Repeat Dialing, and Free Caller ID block.

Voice Pulse
Voice Pulse has three plans, America Unlimited, Local Unlimited +200, and Business Unlimited. The America Unlimited plan costs $24.99 per month. The Local Unlimited +200 costs $14.99 per month, and the Business Unlimited costs $45.99 per month.

VoIP American
VoIP American has three different plans. These are the VoIP American PBX plan, the VoIP American Voice plan and the VoIP American bVoice plan. The VoIP American PBX plan cost $19.99 a month for a private line and $44.99 a month for unlimited calling. The VoIP Voice Residential Basic plan costs $14.99 per month and the VoIP Voice Residential Unlimited plan costs $29.99 per month. The bVoice Business plan costs $34.99 per month.

Packet 8
Packet 8 not only offers phone plans, but they also offer videophone plans. Their residential plans are the Freedom International and Freedom Unlimited. Both of these plans cost $19.99 per month. The Videophone plan is the Freedom Unlimited and that too is $19.99 per month. Their business plans consists of three different plans. These are the Virtual Office service plans that cost $19.95 per month, the Virtual Attendant Service plans that cost $14.95 per month, and the Business Phone Service plans that cost $34.95 per month.

Sun Rocket
Sun Rocket offers their signature service for either $24.95 per month or $199.00 per year.

Speakeasy
Speakeasy offers many different plans ranging from Home Office, Small Office I, Small Office II, and Small Business. Their Home Office plan costs 79.90 per month, the Small Office I plan costs $560.00 per month, the Small Office II plan costs 1,039 per month and the Small Business plan costs $2,349 per month.


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