The Session Initiation Protocol is a necessary piece of the communications puzzle. With the explosion of the number of communication devices, people are more connected than ever before. IP-enabled ...
In Part 1 of our SIP primer, I covered the SIP foundation layers starting from the message structure and ending with the SIP transactions. We saw how phone registrations and proxies could work using ...
Yeah I recognised the KTAS phone immediately too. It was from back when we had 3 companies covering 3 different parts of Denmark. They were later joined into one company and sold to Ameritech all the ...