But like PRI, the SIP Trunk service provider supplies the signaling and transport services to the customer site (s), which interconnect to the (certified) CPE. Some providers who make extensive use of ...

I have a question for all you No Jitter readers: What is SIP used for? If you are like most people in the communications industry, you will tell me that SIP is used to make telephone calls. Some of ...

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 ...

When it comes to building interoperable unified communications architectures, “SIP is it” as far as standards go. Session Initiation Protocol (SIP) provides the “glue” that enables users to quickly ...