about Forward orignal number problem.

Unanswered Question
Aug 17th, 2009

Dear all

A is a external telephone

B is a Cisco ip Phone

C is external telephone

we settings "no answer forward" to C on B.

when A call B,B forward the call to C. B's number is displaied on C. Now I want to show A's number on C.

My CM version is and it is base H.323. I can see A's number base on mgcp.

I have this problem too.
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Paolo Bevilacqua Mon, 08/17/2009 - 07:35

You cannot do that, as telco doesn't allow originating call with arbitrary number, for obvious reasons.

benzhao98 Mon, 08/17/2009 - 17:10

thanks for your reply.

But Custome tell me that it is work well when use MGCP protocol? Why?

Paolo Bevilacqua Mon, 08/17/2009 - 23:33

Take "debug ISDN Q931", check which calling number is sent to PSTN in case of forwarding.

benzhao98 Mon, 08/17/2009 - 23:44

A is a external telephone

B is a Cisco ip Phone

C is external telephone

I can see the A's number as calling number in GW, but the A'S number is not in range of DID of B, so the calling is disconnect, why GW can not tell pstn this is a forward calls, and make b as calling number?

sorry ,my english is not well. hope you understand above.

Paolo Bevilacqua Mon, 08/17/2009 - 23:57

In CM (sorry not sure exactly where) there is a setting that you must set to "calling number: redirecting".

benzhao98 Tue, 08/18/2009 - 02:47

Thank you very much.

That's no problem. I will try other ways.

Paolo Bevilacqua Tue, 08/18/2009 - 03:22

You don;t need to try other ways the setting is there for that reason, sorry I don't remember in which exact page it is found, but if you serach using the box on the right side, you will find many cases asking the same.


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