IP telephony has long been the bridesmaid of the communications industry. A maturing technology that sends voice traffic over existing data networks, including wide-area networks such as the Internet, ...

Virtually all currently marketed IP telephony systems share a common design platform of server-based call control and distributed media gateways, but there still remain noticeable differences that ...

IP telephony began humbly as a novelty application that allowed online users to converse over the Internet. Today, it has finally matured enough in both feature sets and network availability that it ...

IP telephony is no longer just for companies that do a lot of geographically disparate work. Our columnist gives you the long-distance view. Years ago I remember being very interested in an issue of ...

The system, in principle, is simple. Replace the desktop phones with devices that digitise voice and connect to the LAN with their own IP addresses. Calls between these IP phones happen by ...

The two-way transmission of voice over a packet-switched IP network, which is part of the TCP/IP protocol suite. The terms "IP telephony" and "voice over IP" (VoIP) are synonymous. However, the term ...

Last week, we highlighted an Avaya announcement about the company’s new IP Telephony system called Avaya Distributed Office, designed to meet the challenges of smaller offices that are part of a ...

An open source model for IP telephony might yield results at some time in the distant future, but it will have no such effect in the short term, for a number of reasons. In theory, an open source IP ...

Siemens AG’s U.S.-based networking subsidiary yesterday announced an upgrade of its IP telephony system that can be scaled up to support as many as 100,000 end users on a single network. Version 2.0 ...