We have a polycom vx700 unit we use for video conferencing to a single remote location. My company wants "perfect" videoconferencing. We get good video most of the time but the video fades and breaks up during the transmission. We have a T1 line for internet connectivity and are using 512 for the video conferencing. The polycom is attached thru our Cisco 3560 VoIP switch to a Cisco 2800 router. The polycom unit is assigned a public address. I have a couple of questions.
Why would the polycom unit be passed thru the switch to the router instead of directly to the router?
Why would the router connection for the polycom not be in a DMZ?
I have years of experience with networks, routers and switches but I am a complete nubee to video conferencing. I do not have the problem with the video except when connecting to our Vancouver site. The Vancouver site only has problems with the video when they are connected to us.
I would also be interested in any suggestion of how to get better video conferencing quality.