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New Member

CCM 5.1 not passing External Caller ID


we are running CCM 5.1 on a mgcp gateway and i have run into an issue. If i call an extension directly from a cellphone, the Caller ID shows up.

However, if i call our corporate number and hit 0 for the operator, the caller id shows up as a unity voicemail port and the caller id only shows up when phone goes off hook and answered.

Any thoughts on a solution? I have reset the operators phone but it didnt do anything. It was working on friday before the long weekend and the only changes made to the CCM 5.1 was the Media termination Points device pool was changed.

Thanks in advance

Cisco Employee

Re: CCM 5.1 not passing External Caller ID

unfortunately for a fix on this you would need to go to 6.X

Bug Details

Calls from Unity AA display VM port number on phone display prompt line

they added this parameter:

Display Original Calling Number on Transfer from Cisco Unity

this is only for CUCM 4.2(3) and 6.x versions. since CUCM 5.X is based in 4.1(x) you cannot find it on those versions.



if this helps, please rate



if this helps, please rate
New Member

Re: CCM 5.1 not passing External Caller ID


First off, thanks for your post. Would that explain why this was working before and all of a sudden not be working? I know how cisco is with bugs but how would that explain how it was wokring before and not now?

Im trying to understand this as well as give a explanation to my superiors.

Thank you very much once again.