Voice Calls Drop when desktop sharing from Communicator 2007 R2 Client
One of the most useful features (for me) of Communicator under OCS 2007 R2 is the ability to do a joint desktop sharing session/conference call. Recently, my ability to do this with one of our key office staff just stopped working. We’d be in a voice call, add in desktop sharing, and after about 5-10 seconds of moving screens around, he would drop audio. Other audio participants were NOT impacted. We checked firewall settings, all sorts of stuff (he is running the Windows 7 beta, but so are tons of others at our Office, without issue) with no result. I could give you tons more things that didn’t help, but I’ll just say this: Check the video driver!
After reverting to the basic Windows driver, all was well, but we’re now without a bunch of video features we’d like to have on hios machine, and are digging around trying to get a “good” driver. Apparently not all video drivers work so great in Win7 as yet with MOC, and I’d bet we’ll still see some of this at release. Hope this helps someone else out there!
- Doug
A couple of event items to look for: An Info entry in the App event log for Window Manager Event ID 9010, which will immediately follow a variable event in the same log generated from Communicator.
I actually saw this happen to me in Live Meeting a couple times on Windows 7 Beta too. We had 3 participants and while we were doing desktop sharing my audio would cut out and someone would have to IM me to say they couldn’t hear me. Never thought to check the video driver, but this hasn’t happened again since I installed the Windows 7 RC so you might want to upgrade.