OK. I have looked everywhere and cannot find a solution.
Our network setup is as follows:
We have a main datacenter where all of our servers sit including our OCS 2007 server. In that datacenter, we have a Cisco ASA 5520. At each home office, we have ASA 5505s. They are connected back to the datacenter through an IPSec VPN tunnel (always on). All traffic is exempted and not blocked. Every other resource works fine (IM, Email, RDP, Internet, etc.). When I go to use video it acts like it's connecting and then fails. It works fine between the datacenter and 1 remote office, but when you go office to office, it bombs...
Any suggestions?