Update: We're in the last throes of winter break 2019, which means most Ars' home office phones can stay dormant for a few more days. As such, we've been resurfacing a few classics from the ...

Session Initiation Protocol (SIP), with its promise of serving as a single global signaling standard, has mushroomed in importance for networking in the past year. But it may be years from adoption ...

Session Initiation Protocol (SIP) is a control (signaling) protocol developed by the Internet Engineering Task Force (IETF) to manage interactive multimedia IP sessions including IP telephony, ...

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 ...

Avaya is the latest maker of Internet phone equipment that believes it can succeed where Yahoo and Microsoft have struggled: selling instant messaging that's good enough for the business world. The ...

Because of their robust reliability, security and flexibility, voice over Internet protocol solutions are being adapted by the military worldwide. Voice technologies evolve for tomorrow’s military ...

That's a matter of provider chosen codecs and settings. There are VoIP codecs that provide superior sound quality to the old analog phones. . . but most voip providers are providing the cheapest ...