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New Member

Ho to add external phone number to Cisco 7911 or extension

We have CCM 8.2 and need to add external phone number from the list to one of extension. I added the phone number to External Phone Number Mask under line configuration on the phone. Additionally I created translation pattern and still no luck. I used the phone that was assigned to some else, I can hear like two busy signal and drop. 


I copied settings from another extension configuration that has external number assigned.


Thank You! 

Cisco Employee

There is no CUCM 8.2 version,

There is no CUCM 8.2 version, and what you mention in the title Vs what you say, makes no sense.

Do you want to configure a DID??

If so, what protocol do you use?? H323?? MGCP?? SIP??

Do you want to change what ANI you send to the PSTN??

Where does the TP fits into this??


You don't even explain the call flow and exactly what you're trying to do.

If you're an end user, you probably want to reach your voice admin for this.



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New Member

Thank you I have already

Thank you I have already figure it out: I agree I did not provide enough info. For external DID redirected to specific extension you use Translation Patterns - right?

But then (its up to the provider) you use last 3 digits of your available from list DID you purchase from that provider - right? Then you specify extension number in the CALLED PARTY TRANSFORM MASK -

make sense? There are other way to do it, but this one works at least for me. I am not an expert but at least after whole day of fighting it worked for me. So please understand people starting journey with call manager. Thank You



Cisco Employee

Well, a DID is by definition

Well, a DID is by definition a number that someone dials from the PSTN, that is delivered to your GW, and that n number of digits (usually 3 or 4, can be more, that's up to you and your telco) are delivered to you

ie 1 409 902 1234, you would get 1234 in your GW, and then configure 1234 as a DN in a phone, or wherever you need.

No need for a TP, unless you want people to dial that DID, and reach something you have already configured and in place, that is not a DID.

Called party mask is to change what you're dialing, calling party mask to change what you send as ANI.



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New Member

Thank You Jaime, your

Thank You Jaime, your explanation help me understands the mechanism. Thanks!

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