CUCM-UC SIP integration: For UC calling PSTN, where does CLID come from?

[Michael Mertens]

I have a CUCM-Unity Connection 8.5 SIP integration and am using notfication devices for VM messages left in a VM box. Whether it is UC calling an internal IP phone or a external cell phone via the PSTN, Caller ID shows "unknown number". Where in UC do you specify (or how is the number derived for)the caller ID/ANI for phone calls going out the SIP trunk into CUCM?

Thanks!

Mike.

[Jonathan Schulenberg]

When you add a Port Group to the Unity Connection Phone System there will be a field labeled Contact Line Name. This is the FROM address that Unity Connection will use in SIP messages. You typically set this to be the DN or DID of your voicemail pilot. If this is not a DID you can also use a Calling Party Transformation CSS on the CUCM SIP Trunk to transform the internal DN to an externally valid DID.

Additionally, there is a field on the Port Group under Edit > Advanced Settings labeled Remote-Party-ID. This is the Caller ID Name that Unity Connection will set in the FROM address of SIP messages. If you do not set this calls to Unity Connection will only see the Contact Line Name.

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[juancastillo]

Hi Jonathan,

Thanks for this info....