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Faxing with SIP

I have a remote BCM running SIP connected via CUCM 6.1 to a SIP gateway. My Problem is that I have the trunk built for the BCM with a codec of G729. On the Gateway, I have fax protocol cisco.

This works great when I get a fax from the gateway to the BCM, but when I try to fax out, it fails. The Fax Machine is trying to connect via G711 but my Region code says G729. I see it try to connect via G711 but fails.

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‎10-13-2009 01:46 PM
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Cisco Employee

Thank you for your posting and interest in the Cisco Support Community.  For best practices on posting documents in this community you can refer to

https://supportforums.cisco.com/docs/DOC-6022#Can_I_use_documents_to_post_technical_questions

For technical questions related to a Cisco Product or Technology, we encourage you to post on the Network Professionals Forum (NetPro). For your specific issue, you can go to IP Telephony forum.

Also, you can refer to some of the fax troubleshooting documents at:

New Member

We had to set our Rightfax server to a new region that forced it to be G711.

Good luck.