Can anyody help with the following:
I use an IP Trade system connected to CUCM version 6.1.2. For this, an IP Trade turret is an advanced SIP phone configured on the CUCM. At CUCM I have configured a H.323 gateway with PSTN access. Also in this setup I have an IP Trade TPO server that serves as a RTP mixer for join functions on the IP Trade turrets. the problem I have is this:
When a call is active between PSTN phone (through H.323 gateway) and SIP turret1, and SIP turret2 wants to join this call, the design within the IP Trade system moves the active call from PSTN to turret1 to the TPO server. this is the flow:
Call is active between PSTN and turret1. turret2 wants to join this call.
Turret2 sends a SIP INVITE to the TPO server.
TPO server sends a SIP INVITE to turret1.
Turret1 sends a SIP INVITE to CUCM.
all SIP INVITE messages indicate the new destination for the call --> TPO server.TPO server will mix all the streams making a 'conference'
the problem is this:
the CUCM receives the SIP INVITE from turret1 and has to update the PSTN caller (H.323 call). this is not happening! CUCM does not send any updates to H.323 gateway for change of destination. this is the error in the tracelog of CUCM:
000010464| 2009/12/08 13:55:23.477| 001| SdlError | H245SessionEstablishedFailure | NA | H245Interface(1,100,156,7) | H245SessionManager(1,100,25,7) | (1,100,25,7).1-(*:192.168.20.251) | Destination process does not exist
Is this a process that is not supported by CUCM? I read alot about H.323 not supporting redirection in an active call..
anybody any info on this issue? help would be appriciated, although also a TAC case has been opened for this.