In Part 1 of our SIP primer, I covered the SIP foundation layers starting from the message structure and ending with the SIP transactions. We saw how phone registrations and proxies could work using ...

BELLEVUE, Wash., Aug. 29 /PRNewswire/ -- 3G Americas, an organization representing the GSM family of technologies in the Americas, today provides a white paper entitled "Why SIP-I? A Switching Core ...

The 18th Internet Telephony Conference & Expo (ITEXPO) came to Los Angeles last week, and being the opportunistic sort, I decided to get myself on the press list. That's one of the advantages of ...

NewsFactor reports that converged services are now helping drive Voice over Internet Protocol sales. The process is called SIP, or Session Initiation Protocol.

In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...