I REALLY thought I had a threaded started on this but I guess not. For the past 8 years we have been working on a way to make it easier to diagnose issues with video calls. As pointed out here on VTCTalk, most of the solutions for really HARD problems rely on reading a Wireshark packet sniff. Well, truthfully, I hate reading those things... So, to that end, we have been working on a way to make it easier to read.
To that end, we developed something called VTC-Call Stream Inspection. This unique tool is designed to help people read thru packet sniffs (often called pcap). We read the sniff and output a .html file of what we observed in the pcap.
By making the important H.323 (and some SIP) information available in text format, this can help the administrators/operators/end users diagnose their problems.
VTC-CSI documents all of the H.225, H.245, RTCP, etc packets including things like camera control and H.239 content.
You can see an example analysis HERE
The Website is: www.vtc-csi.com
You can download a demo copy of VTC-CSI from the same website. This product is NOT free. Single copy of VTC-CSI can be purchased for $499 (USD). That copy of VTC-CSI will be tied to whatever computer it is installed on. It can be transfered to another computer at anytime but you will have to get a new license key.
If you have any questions about it, let us know. It is certainly a work in progress but has significant value already.