I have this problem:
I have configured the Cisco IP thelephony 7940 and 7970 with video capacity in the Call Manager version 4.1(2). When I call from the 7940 telephone to 7970 one, the Video in the monitor appears, and this operate succesfull, But when star meet me conference o ad-hoc conference, the video no appears. I have a CCM version 4.1.2, and the MCU is 3511MCU E, which have is registered in the Call Manager. What could be wrong?. I have created the REsource group, resource group list and finally I have specified than thr telphone use this media Resource.