I have set up CCM 4.1(3) to talk to CME via a ICT (GK) trunk. Everything works ok except calls from a CCM phone over the ICT trunk do not get successfully forwarded to CUE (the call just drops). I can dial the VM pilot number direct from the CCM phones, it just appears to be when the CME phones forward on no answer or busy.
When i call from a PSTN phone the CME phone transfers to CUE fine.
I have checked codecs and everything is G711u for now to avoid any transcoding issues.
Any help would be greatly appreciated.