| Problem Summary || CVP warm transfer with queuing gets disconnected after a few seconds when the transfer is complete. CUCM logs and/or sniffer trace show a reinvitation collision scenario. This only occurs with IP originated callers, not TDM callers.
| Error Message ||Logs show reinvitation collision.
| Possible Cause || This problem is visible when CVP and CUPS are using proxy and UDP on the outgoing direction, and the CUCM SIP trunk is using TCP on the outgoing direction.
| Recommended Action || Set UDP on the CUCM SIP trunk security profile or set CVP and CUPS to use TCP.
| Release ||Release 7.0(2)|
| Associated CDETS # || None. |