I'm having a really odd issue with some legacy Tandberg codecs and CUCM. I have a VCS 8.5.1 trunked to CUCM 10.5.2. When I connect a call between an SX20 registered to CUCM and a legacy codec (880 MXP, Edge 95) registered to VCS, the content channel is only negotiated at 4CIF resolution. This is for SIP-SIP and SIP-H323, regardless of who makes the call. If I register the SX20 to VCS, I get content at 720p. SIP trace from CUCM shows that CUCM receives a 200 OK from the SX20, but then for some reason it sends and ACK with SDP that only contains CIF resolutions for the content channel. Calls from other SX/C series codes on VCS to CUCM negotiate content at HD as well. Seems like a weird issue with CUCM and H263. I can post the traces later but I have to scrub the IP's first.
Any help is appreciated. Thanks, Mike
