My experience with VOIP to date has surounded SER and Asterisk, SIP and IAX. It would appear as though I am about to be inducted into the world of H.323 and as such I am interested in hearing from anyone who is using Asterisk extensively in a mixed protocol environment, especially in using H.323 to pickup/put down calls from an upstream provider. I have started some reading, but I am not sure where to devote my attention. Essentially what I'm asking is, should I be looking to use Asterisk to route H.323 calls, or would another product be more appropriate? I am likening this scenario to the Asterisk/SER relationship. Should I be using Asterisk in conjunction with a dedicated H.323 Proxy? Thanks in advance.