Incoming Calling Number over QSIG Link PBX - CUCM 6.1

Unanswered Question
Feb 18th, 2009


I am running CUCM 6.1, with a MGCP 2821 QSIG gateway interfacing to a Samsung PBX. The originating caller-id is being prepended with a three digits number for certain calls that are transferred from a Samsung Phone to a Cisco Phone over the E1 link. So instead of seeing a four digit extension number ie. 4321, the originating caller-id is showing as 7764321. There are other seven digits originating caller-id numbers such as 5267185 that are being sent correctly, without the prepended numbers.

I would like to strip off these three leading numbers? I also need to be sure that digit manipulation is only performed on originating caller-id that has a leading 776

It appears that on CUCM digit manipulation can only be performed on calling and called numbers. Is the originating caller-id in this case the same field as the calling number? Would manipulating the calling number in CUCM change the originating caller-id?

Thanks in advance.


I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
tstanik Tue, 02/24/2009 - 12:24

Manipulating the calling number don't change the originating caller-id.


This Discussion