Session Initiation Protocol, or SIP, has been hailed as the key to the convergence kingdom, the global signaling standard that will enable all switches, gateways and phones — hard and soft — to talk ...

How do we break the almost infinite cycle of continuous interoperability testing? Last week we moved from a discussion about the technology and weakness of the SIP RFCs to what I feel is a far more ...

If you’re even remotely interested in the convergence / VoIP / unified communications field and haven’t read Steve Taylor and Jim Metzler’s article on SIP interoperability, you should. I would like to ...

Why Most Buyers Can Ignore the Question of SIP vs VoIP Your email has been sent Discover the differences between SIP vs VoIP and why those differences don’t really matter that much during the buying ...

The problem is that RFC 3261 that defines SIP has become "everything to everyone" and bloated in both size and in flexibility. For those of you that have deployed SIP-based solutions or SIP Trunking, ...