Hi<br><br>I have tried to incorporate 4cif image size in MYPhone by setting videowidth = 704 and videoHeight = 576.<br>It is working fine with Polycom PVX. 4CIF video is received on Polycom side. <br><br>But when I run MyPhone on both sides with 4cif image transmission set&nbsp; ,no video is being transmitted.The video channel is opened but still video is not seen and MyPhone crashes IN H323Connection::StartHandleControlChannel().<br><br>controlChannel is NULL in this function and it crashes.<br><br>Can someone help me with 4cif transmission. I doubt that version 1.20 supports 4cif transmission when H323+ library is being used on both the sides.<br>I have tried to transmit 4cif with my sample application on both sides but it is also not working.<br>I have tested 4cif with OpenH323(older ) version 1.15.6 and it was working fine with 4cif.<br><br>If someone else has tested this feature on 1.20 release of H323+ ,please help!!<br><br>Thanks.<br>



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