Thursday, September 26, 2013
SIP: Anatomy Of The Registration Process For A Valcom Paging 801 Unit To A Cisco CallManager (CUCM)
This is pretty cool stuff to me. Im learning more about SIP these days and so as I went to troubleshoot a paging problem at one of my customers, I decided to fix the problem first, then do a packet capture of the registration process from startup of the valcom unit. Below is what I captured, using Wireshark.