Good Day,
We have a 3Com VCX running 6.0.4c, we are trying to use a Mitel 5224 phone on it in SIP mode. The Phone says it is registered however it does not seem to be registered properly. I can make external calls, and calls via any routes that I have manually setup. However I can not call the mital phone and the Mitel phone can not call any internal users via their extensions. The Sip log on the VCX does give it and "OK" status on registration, but I do not believe that it is done properly.

Kind Regards
Michael Hayes