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Unable to foward external calls to voice mail

Hi,

We setup a integration with Exchange UM 2010 for voice mail as posted in this document http://www.microsoft.com/downloads/en/details.aspx?familyid=D5DB0297-7850-4F52-B965-B8006B4C05F5&displaylang=en

Internal calls are being send to the voice mail pilot number and Exchange server is answering with the right prompt but external calls are getting a busy signal at the moment the call should be transfered to Exchange,

The scenario is the following:

PSTN--->Gateway(Cisco 2901)---->CM Cluster---->Exchange2010

Guessing the problem is route pattern, dial plan, codec ou somewhat else.

Any help will be welcome.

Thanks

Celio

1 Accepted Solution

Accepted Solutions

htluo
Level 9
Level 9

Like you said, it could be caused by multiple things.

I would check codec first.  Do you have MTP enabled for the SIP trunk?  Also make sure the incoming GW's CSS can reach the pilot number.

Michael

http://htluo.blogspot.com

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