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 ...

On either side of that somewhat soft SIP trunk demarc, security continues to be important, and it's still a matter of contention on who's willing to pay for what services. In case you don't know him, ...

Cisco Systems Inc.’s update to its CallManager IP PBX — introduced this week with native Session Initiation Protocol (SIP) support — will require broader ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One minor inconvenience in writing about the worlds of video and data communications is the large ...

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 ...