Has anyone had any luck with creating a SIP Trunk between a UC320 and CUCM? We have a location that we recently just acquired that has a UC320 running on site and for simplistic and ease of transition it would be easier if we could just create a SIP trunk between our CUCM 10.5.2 cluster and the UC320 at the location ( ON-NET connection of course). I have been able to to configure the Trunk on CUCM and when I call extensions on the UC320, it goes through with no problem, but something is not right on the UC320 side. When I try to dial extensions that belong to the CUCM the calls fail. I'm certain having a UC500 or CME would be a lot easier since it has CLI and I could just program some dial-peers, but it seems that the UC320 is very limited on it or that my understanding of it is limited.
Thanks
