[cisco-voip] ISDX - Call Manager transfer issue

[Damian Turburville]

Hi,
Hopefully one of you clever people out there can help me out with a problem we are having.
The setup is as follows

Siemens ISDX
    sending DPNSS to
Westell protocol Convertor
    converting to qsig and sending to
Cisco 2651XM MGCP gateway

    connected across WAN to 
Cisco Call Manager 4.1(2)

The problem is that when someone on the isdx places a call to a cisco phone on the CCM 4.1 and the cisco phone (7912 or 7960 series) attempts to press the transfer button the call is cut off.
We have run a "debug MGCP events" on the gateway but are having trouble interpreting it, if anyone can lend a hand it would be greatly appreciated.

I have attached text files with the MGCP debug output along with the gateway config and the output of the show version command. If there is anything else that may help please let me know.

Thanks,
Damian



      
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