Value Added Signalling Protocols?
February 26, 2008
This article discusses how every PBX vendor has implemented proprietary protocols or extensions to standard protocols necessary in order to deliver functionality users want. This has certainly introduced a certain number of interoperability issues, but has it been necessary? He then suggests that SIP because it lacks the basic features customers need. — Yes, the author is entirely right in asking that question. Today's VoIP protocols are being used beyond their intended designed.