we have a HDX7000 (software rel. 3.0.5-22695) and are experiencing some issues with transferring video calls.
What I am trying to achieve is the following:
System A (a Cisco EX90 SIP-registered with service provider 1) calls system B (HDX 7000, h323-registered with service provider 2)
System A initiates a call transfer in order to transfer the call to system C (some URI, not important)
System A is disconnected from system B, System B calls system C and establishes the call
This actually works fine as long as system B (HDX) has the multipoint option enabled. When multipoint is disabled, the HDX is unable to initiate the call to system C.
When looking at the system log on the HDX, it looks like the HDX immidiately tries to disconnect from system A when receiving the transfer request, and a DRQ (disconnect request) is sent to the gatekeeper.
However, it starts trying to establish the new connection with system C before the gatekeeper confirms the DRQ (disconnect request) for the first call with system A.
When this happens, the call to system C fails due to "No more room in conference":