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What is VOIP?

Voice over Internet Protocol(VoIP) is a protocol optimized for the transmission of voice through the Internet. VoIP is also known as IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband. Companies providing VoIP service are commonly referred to as providers. Some cost savings are due to utilizing a single network to carry voice and data. VoIP to VoIP phone calls are sometimes free, while VoIP to public phone networks may have a cost that is borne by the VoIP user.

VOIP Services

VOIP often has a large set of functionality that is free (whereas the normal public phone system must charge for each of these functions to allow for the added cost they must go through in order to provide the functions):

extra telephone line
3-way calling
call forwarding
automatic redial
caller ID; features that traditional telecommunication companies (telcos) normally charge extra for.
secure calls
can be used from anywhere you have an internet connection (location independence)
integration with video, data, audio conferencing, managing address books, and others

Directions

We have looked and selected a number of voip carriers that meet your needs and provide voip service. The voip providers are grouped by functional category and coverage area. The different voip service categories are listed below center.

VOIP Service Category: All Business Consumer International UK US

Computerworld VoIP News
Computerworld.com's award-winning Web site offers IT pros continually updated news stories, as well as features, analysis pieces, opinions and research/resource materials on important technology issues. With a heavy focus on technology users, the site serves as a resource for IT professionals looking to improve business operations -- and their own careers -- by successfully deploying and managing technology.

Elgan: While Windows sleeps

These new technologies are perfect metaphors for what's happening in the industry, Mike Elgan says. In both cases, Windows is asleep while Microsoft's own partners give users what they really want.

Verizon unveils integrated emergency response system

The Verizon Communications Interoperability Solution converts all designated radio signals within the emergency response system to IP so responders can communicate no matter what frequencies their devices use.

VoiceEngine VoIP tech license offered for iPhone

Middleware lets iPhone developers create software that will enable iPhone users to communicate using VoIP technology over Wi-Fi rather than conventional cellular voice services.

Cisco to expand work with HP on unified communications

Cisco Systems and HP plan to work together to sell more unified communications products, with both companies investing in training and building global marketing and sales programs.

First responders get more emergency communications options

NIST has developed a prototype of a so-called breadcrumb radio communications system for emergency response teams, while Motorola is adding a new line of multiband radios.

AT&T launches voice for U-Verse

In its San Antonio test market, customers can get features such as the ability to combine their VoIP service with AT&T wireless voice mail, a "U-Verse Central" online management portal that lets customers manage call preferences, and voice mail from their PCs.

More VoIP News...

View more VoIP news and analysis from Computerworld.com.