Wondering if anyone could recommend a good book(s) that would cover one or all of MGCP, H323 and SIP in depth (ie: In exhaustive painful technical detail with lots of examples of call setup flows in various scenarios :)
I've passed the QoS and CVOICE exams and working on GK/GW's. My concern is that while the cisco press GK/GW book dedicated one chapter to each of these protocols they coverage really does not seem to be deep enough to be useful in a troubleshooting situation. Not sure if I should be printing off RFC's at this point or not.
Thanks in advance!
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