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 ...

SIP session requests leverage the “session description protocol (SDP)” to define session characteristics such as media type, codec, and so on. While the IETF and SIPforum have standardized many of the ...

Deployment of voice-over-IP endpoints, such as Session Initiation Protocol phones and H.323 IP PBXs, within corporations has presented IT with new interoperability challenges. A new breed of network ...

Broadcasting over IP is rapidly becoming the paradigm by which broadcasters are planning future broadcast network infrastructures. Within the diverse range of broadcast IP devices coming onto the ...

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 ...

Codec manufacturer APT announced that its IP codecs — the Horizon, Meridian, Eclipse and Oslo lines —support SIP/SDP protocols. This will allow APT’s IP codecs to communicate with codecs made by other ...

The vast majority of the bug fixes are designed to close exploits through which denial of service attacks could be launched. According to the company, the Session Initiation Protocol (SIP) ...