Monthly Archives: December 2013
The Back-to-Back User Agent (B2BUA)
SIP is nothing more than a protocol. It has request and response messages. These messages contain headers and headers contain parameters. Both request and response messages optionally carry a message body. The message body is typically Session Description Protocol (SDP), but it can be anything you want it to be. I once helped write a […]
Avaya Call Intercept Services
A few weeks ago I wrote about Avaya’s new Collaboration Environment (CE). Since then I have had time to download the SDK (Software Development Kit) and spend some time reading through the documentation. So far, I like what I see. The Java classes are straightforward and comprehensive in their scope. I have yet to write […]
Virtual Communications
In my perfect communications world there are no gateways, analog and digital trunk cards, ringtone generators, T1 clock controllers, or any of the other components of a TDM infrastructure. Everything runs on off-the-shelf servers, using standard operating systems, across an IP network. Of course, my perfect world is pure SIP and because of some recent […]
Tao, Zen, and Tomorrow 