The Basics of SIP Trunking

With VoIP and UC gaining traction, SIP trunks are all the rage – but what are them critters?

 By VoipPlanet.com Staff
Page of   |  Back to Page 1
Print Article

"TDM trunks have long served to connect corporate PBXs to the public switched telephone network (PSTN). But with more companies moving to VoIP, SIP trunking has become an increasingly popular technology companies can use to simplify their network architecture and save money," writes IDG News Service reporter Brad Reed on Computerworld.

"Just what is SIP trunking?" Reed asks.

"Let's take it one part at a time. SIP refers to Session Initiation Protocol, the standard developed in the 1990s by the Internet Engineering Task Force that is used to set up and terminate VoIP calls and generate dial tone. A SIP trunk, then, is a broadband Internet link that utilizes SIP to connect a company's IP-based PBX to an Internet telephone service provider (ITSP)," Reed explains.

Click the link below to read the full article:
SIP trunking: A primer

This article was originally published on Jul 12, 2010
Get the Latest Scoop with Networking Update Newsletter