Obi200 Cisco Unified Communications Manager 10 SIP Trunk

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JoeyTurnstile:
Hello,

I'd like to configure my Obi200 as my PSTN SIP trunk within Cisco Unified Communications Manager (CUCM) v10.  The path would be:

PSTN -> Google Voice -> Obi200 -> SIP Trunk to CUCM -> Cisco IP Phone

I have found documentation on how to configure  an Asterisk server, but nothing for CUCM.  I have configured many SIP trunks to different providers via CUCM in the past, but I can't seem to get the Obi200 to work.

I have a SIP trunk configured in CUCM pointing to the IP address of my Obi200, but the SIP trunk status within CUCM is "No Service"

I assume I have something configured incorrectly within the Obi200 itself. I have spent a few days Googling, but I haven't found any documentation for this setup, is there anything out there?

Thank you

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