Caller ID on EX90

[scooter817]

Hi Everyone

I wanted to get your opinion on what you might think is cause this issue. We have 2 Cisco EX90 units that are in use by our Execs and the caller ID doesn't work for external calls but internally it works fine. It's just these 2 devices because all of our other phones which are the 79 and 89 series work fine for external caller ID. If anyone has seen this or my know of something I can try I would greatly appreciate it. Thanks in advance for any and all help and have a great day.

CUCM Version=8.6.2-20000.2

GW=H323          

[Jonathan Schulenberg]

Just a shot in the dark: Does the caller ID from the PSTN arrive as part of the original ISDN SETUP IE; or, as a follow-on IE?  It's possible that if it's missing in the original H323 call setup request (and by extension the initial SIP INVITE to the endpoint) it isn't being updated properly later on, at least not all the way through the call flow. You would need debugs from the gateway and CUCM to test this theory.

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