Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Caller ID from Remote Location


Location B is connected to Location A via a Point to Point T1. Location A is the central location and houses a CCM 4.0 that controls the phones at Location B.

Location B needs to have a certain caller ID for outbound calls. Normally this would not be hard to do using CCM, but we have a strange setup at our facility. Unfortunately at Location A we have a dual telephony environment with a Cisco CallManager and Avaya Definity G3. The two systems are connected via a Ti line. The CCM side has a PRI circuit that handles inbound calls and the Definity side has a PRI to handle outbound calls.

To accommodate for circuit overflow we had to route all outbound IP phone traffic from locations B and A over the Ti line and to the PRI circuit attached to the Definity switch.

Call flow is as follows (as I understand it):

1. Outbound call at location B is made.

2. Call travels over Peer to Peer circuit to a 3660 router and CCM.

3. 3660 router then sends the call over the Ti line to Definity.

4. Definity routes the call out a PRI circuit.

It seems that external caller ID is being lost when making calls from Location B. External, location B calls appear on caller id as if they came from location A. Does anyone know if external caller ID is lost when placing a call from an IP phone then over a Ti line to a different switch?

Hall of Fame Super Silver

Re: Caller ID from Remote Location

In CCM do the route patterns have the "use phone's external phone number" checkbox checked?

If no, then in order to carry on the phone's external phone number mask you need to check this box. If yes, then check to see if you are overrriding the CLID on the route pattern, route list or GW, or the Avaya PBX.


New Member

Re: Caller ID from Remote Location

Thank you for replying.

In the Route Pattern settings: the "External Phone Number Mask" box is NOT checked. Although, we have inputed the correct caller ID in the "Calling Party Transform Mask" field.

In the Gateway settings: we HAVE NOT put anything in the "Caller ID DN" field.

In Route Group properties: the "Use Calling Parties..." filed is set to DEFAULT. The "Calling Party Transform Mask" and "Prefix Digits" fields are blank.

I don't think that CLID is being overridden on the Avaya PBX.

CreatePlease login to create content