Does anyone know how the CUCM handles call ID information from SIP trunk? Basically, a call comes in over the sip trunk with a from and rid header that looks like '"ABC Company Inc." <sip:[email protected]>'. The callmanager properly displays the quoted part of the header onto the screen as who the call comes from, and it even displays the phone number in the notification area of our 7941's and 7961's. The problem lies in the "missed calls" or "recieved calls" directories, where my users cannot "dial" or "edit dial" from the directory list. The phone number that the call came in from is no where to be found. If you push "edit dial" the original phone number is missing, with no way that I've found to retrieve it. I have played with the caller ID options that I can find on the trunk settings, but everything is called party name and number are both allowed. It's odd to me that the only place to identify the phone number of the calling party over the SIP trunk is on the phones small notification area during the brief few second period while the phone is actually ringing. After the line identification disappears from the phones notification area, I can no longer retrieve it from the phone to return the call.
Any info in this area is greatly appreciated.