Send Only Mobile to one Dial Peer

Unanswered Question
Dec 26th, 2007

Hello All,

My Solution have 2xCCM 4.2(PUB SUB) and 2x2851 Gateways running IOS 12.4-11.T2.

My problem is, I need to Identify the caller ID of PSTN Calls and send to one specific voip dial-Peer.

So the final result that I need to achive is:


Called number 8998

any Caller-ID that starts with 7,8,9 must match the dial-peer voip 10 that have a Session Target pointing to another Gateway.

And anything else must match dial-peer voip 11 or 12 that point to CCM.

Thanks in advance for all.

I have this problem too.
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Paolo Bevilacqua Wed, 12/26/2007 - 10:55


This is call routing based on calling number.

As far as I know, CCM cannot do it, but the GW can, as long you are using H.323 and not MGCP to the CCM. Since you mention dial-peers, I think you can then do that. See following document:

In short: match on answer-address pattern on incoming DP, set a "steering prefix", strip it out on the outgoing DP.

Hope this helps, please rate post if it does!

tafari.lima Thu, 01/03/2008 - 04:45

Hello, Thanks for your Help.

I see the document that you send, but what I need to do is something like that:

Here In Brazil, Mobile phone numbers start with 7,8 and 9. So when any call from PSTN that contains a caller ID starting with 7,8 or 9, need to get the Dial Peer 10, that is one gateway for Mobile numbers, and if the caller ID start with 2,3,4,5 and 6 the call need to match dial peers 11 or 12.

Here is what I thy:

dial-peer voice 10 voip

description ### Entrada PSTN QuesCom ###

preference 1

answer-address 118T

voice-class codec 1

session target ipv4:

dtmf-relay h245-alphanumeric


dial-peer voice 11 voip

description ### Entrada PSTN CCM SUB ###

preference 2

destination-pattern 8...

voice-class codec 1

voice-class h323 1

session target ipv4:

dtmf-relay h245-alphanumeric


dial-peer voice 12 voip

description ### Entrada PSTN CCM PUB ###

preference 3

destination-pattern 8...

voice-class codec 1

voice-class h323 1

session target ipv4:

dtmf-relay h245-alphanumeric

Thanks again

Paolo Bevilacqua Thu, 01/03/2008 - 05:41


Yes, so you need to configure the incoming DP and (for clarity) a separate outgoing DP:

dial-peer voice 118 pots

description call from cellphones

answer-address 118...... <-- 7 digits following 8

translation-profile incoming add888

dial-peer voice 10 voip

translation-profile outgoing strip888

destination-pattern 888........

voice translation-profile add888

translate called 880

voice translation-profile strip888

translate called 881

voice translation-rule 880

rule 10 // /888/

voice translation-rule 881

rule 10 /^888/ //

Hope this helps, please rate post if it does!

tafari.lima Thu, 01/03/2008 - 06:05


Thanks for your help, the solution that you send resolve the issue.


Tafari Lima

LUIGI PIETRONAVE Fri, 01/04/2008 - 02:34

Hi Paolo,

can You give me some help ?

I've a similar problem, but not for just a caller-id but also for a called-id.

I mean that I need that all international calls going to a certaint DN1 was redirected to DN2.

I tried with the answer-address, but it does not work.

Any suggest ?

many thanks


LUIGI PIETRONAVE Fri, 01/04/2008 - 23:37

Hi Paolo,

what I'll need is that just all incoming international calls to DN1 1234 was redirected to DN2 5678.

I've to intercept only international calls to a single DN. Is that possible ?

regards and many thanks


Paolo Bevilacqua Sat, 01/05/2008 - 04:05

What callamanager or express do you have, and what protocol do you have between gateway and callmanager, and what kind of lines to telco do you have ?

LUIGI PIETRONAVE Sun, 01/06/2008 - 01:50

I've callmanager 4.3 with 2 gtw connected in H.323 and incoming calls via E1 ( one E1 for each gateway ). With a collegue of mine we was thinking about to configure a "dial-peer voip xxx voip" with for the DN requiring that configuration, and specifing on that dial-peer "dial-plan international".

By this way i would be able to intercept international calls to that DN using outgoing dial-peer.

We've still to test.



Paolo Bevilacqua Sun, 01/06/2008 - 04:02

Hi Luigi,

It may work as suggested, but I'm not sure.

You would first catch with "numbering-type international", on an incoming pots DP, that also has "incoming called-number" to be sure.

This DP also need have "translation-profile incoming XXX". In the translation-rule, for the called number you will prefix some digits in front of called, for the purpose of sending to a a specially selected outgoing DP, suppose the digits are FF.

rule 1 // /FF/

In fact you will have two ougoing voip DPs, one for all extension, destination-pattern FF.... (assume you have four digits extension). This one will have a translation-profile that only strips FF and leave the extensions as it has to be:

rule 1 /^FF/ //

Finally you will have the voip DP for the extension that doesn't receive international calls. This one, will match destination-pattern FF1234, and will have a translation-profile and rule that will set called number to be 5678.

rule 1 /^FF1234/ /5678/

The alternative to all the above, is a custom TCL/IVR script.


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