We are using Polycomm video conference units along with a Cisco MCU3510 Gatekeeper, and we're experiencing problems with video quality. If we place point to point calls between units, the video is very clear and not choppy at all. When the MCU is used to handle the conference, video becomes choppy and less clear. The MCU is connected to the network using 100MB/full duplex so it shouldn't be a connectivity issue, except for the fact that there is no setting in the MCU for speed/duplex so autonegotiation might be a problem. Does anyone here have any experience with these units? TIA, John Neiberger _______________________________________________________ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]