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Displaying extension caller ID instead of cell phone for internal calls

Is there a way to associate a user's cell phone with their extension such that when the user calls another user in the office, their 4-digit extension will display on the phone instead of their 10-digit cell phone? In other words, I want to make the call look like it's from a phone in the office rather than from an external cell phone.

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Community Member

Re: Displaying extension caller ID instead of cell phone for int

No. This can be achieved without having to dial-in to MVA number.

The system needs to identify the number you are calling from as a RDN number to be able to manipulate it to extension number. By default it will try to match the complete number received from PSTN (ANI) with the RDN set.

Typically, we set the RDN prefixed with a 9 so as to enable Mobility to call successfully out a gateway. Since the RDN contains this 9 and incoming ANI may not have this 9 it will not recognize it as a RDN.

You can change the default mechanism to partial match of say example last 7 or 8 digits.

Go to System > Service Parameter > Select Publisher > CallManager Active Service

Same place where you configured mobility settings there will be a parameter for matching RDN.

Change it to "Partial Match" and no. of digits to partial match as 7.

It will work. (Also you will notice when you call in MVA IVR to make calls, you will just be asked for PIN instead of RDN & PIN as the system has already identified your RDN)

Please rate posts.

7 REPLIES
Hall of Fame Super Gold

Re: Displaying extension caller ID instead of cell phone for int

Are you using MGCP or H.323 ?

Community Member

Re: Displaying extension caller ID instead of cell phone for int

Sorry - rookie mistake....

CUCM 7.1(3)

2811 MGCP GW

VIP Super Bronze

Re: Displaying extension caller ID instead of cell phone for int

Community Member

Re: Displaying extension caller ID instead of cell phone for int

MobileConnect is configured and the cell phones are set up to be remote destinations. I still see the cell phone caller ID though when calling an extension. Is there a configuration option I'm missing?

Community Member

Re: Displaying extension caller ID instead of cell phone for int

Jonathan,

It looks like I can do this with Mobile Voice Access but I would then have to call the MVA access number, enter a PIN, and then make the call:

"Mobile Voice Access extends Mobile Connect capabilities by allowing users to originate a call from a remote destination such as a mobile phone as if dialing from the desktop phone. A remote destination represents a phone that is designated as available for Mobile Connect answer and pickup. The user dials Mobile Voice Access from the remote destination. The system prompts the user for the PIN that is assigned to the user in Cisco Unified Communications Manager. After being authenticated, the user can make a call by using the same dialing methods that would be available if the user originated the call from the enterprise desktop phone."

Is this what you were referring to?

Community Member

Re: Displaying extension caller ID instead of cell phone for int

No. This can be achieved without having to dial-in to MVA number.

The system needs to identify the number you are calling from as a RDN number to be able to manipulate it to extension number. By default it will try to match the complete number received from PSTN (ANI) with the RDN set.

Typically, we set the RDN prefixed with a 9 so as to enable Mobility to call successfully out a gateway. Since the RDN contains this 9 and incoming ANI may not have this 9 it will not recognize it as a RDN.

You can change the default mechanism to partial match of say example last 7 or 8 digits.

Go to System > Service Parameter > Select Publisher > CallManager Active Service

Same place where you configured mobility settings there will be a parameter for matching RDN.

Change it to "Partial Match" and no. of digits to partial match as 7.

It will work. (Also you will notice when you call in MVA IVR to make calls, you will just be asked for PIN instead of RDN & PIN as the system has already identified your RDN)

Please rate posts.

Community Member

Re: Displaying extension caller ID instead of cell phone for int

@pratik.rb:

Thanks! Works like a charm.

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