7980 video call to a H323 gatekeeper-registered Polycom

[datng]

Hi,

Only the audio is working for the point to point call from a 7980 that is registered with CUCM to a H.323 VSX 7000 registered to a Cisco IOS gatekeeper; there is no video. Although both endpoints have video capabilities. The call flow: 7980 (SCCP) -> H.225 trunk gatekeeper controlled -> gatekeeper -> VSX 7000. What is missing to prevent the video from showing up?

Thanks

[datng]

After adding a H.323 client, the CUCM is registered to the gatekeeper using a RasAggregator trunk and video is now working.