Hi All, currently, I had been compiled the h264plugin from opal project, together with libx264,avcodec and any stuff to make it work. when, I do a conference on both side using my own codec in MyPhone2, It work fined. The problem occur when I communicate with other voip software like polycom, VCON... In the polycom(PVX 8.0.2) media statistic, it show both side info as below: People Tx People Rx ------------------------------------------------------- Video Protocol: H.264 H.264 Video Rate: 320 320 Video Rate Used: 319 84 Video Frame Rate: 15 0 Video Packet Lost: 0 0 Video jitter: 0 2 Video Format: QVGA ----- Audio Protocol: G.711U G.711A Audio Rate: 64 64 Audio Packets Lost: 0 0 Audio Jitter: 0 0 The frame rate and video format got problem... Do I need to specify video format and video frame rate in H323plus (generic capability), Any Idea??? Thanks.