UC500.com

Hi All,

I am having problems configuring my CME system to forward incoming calls back out through the sip trunk. I am sure that hairpining is required to do this but I just cant seem to get it working.

Things that work
1) Incoming calls work fine and can be transfered to other internal extensions
2) Outgoing calls work fine
3) Calling from an internal extension to another extension forwarded to an external mobile works.

Calling the direct dial of the extension that has a forward from an external line gives the sip 302 moved error and gives the calling user a dead tone.

Anybody any ideas? I have tried adding

voice service voip

supplementary-service h450.12

allow-connections h323 to h323

telephony-service

call-forward pattern .T

But no joy :-(