The iptel.org 180+ page SIP tutorial is outstanding. Another overview that is a bit more market-oriented and nearly as long. White paper on the SIP value proposition over telephony, SIP and the new ...

Voice-over-IP (VoIP) networking comprises many components and network managers might find themselves treading on new and fragile ground as they investigate VoIP projects. This white paper provides an ...

Avaya has launched phones and software that it claims will make it easier to intelligently route calls in businesses and call centres. On Monday, the communications firm announced the release of ...

A network that uses the IP protocol, which is part of the TCP/IP protocol suite. IP has become the global standard for networking, which includes the entire Internet, many of the data and voice ...