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Re: Replacing Source Alias on VCS

Thanks for the info. Are there any policy servers already built for use with VCS that I can download?

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Replacing Source Alias on VCS

I'm interested too in a pre-built policy server. I really hope there's one



Replacing Source Alias on VCS

Id also be interested in a pre built Policy Server ... anyone?


Replacing Source Alias on VCS

Good Morning Andreas,

i need a same point for this case.

An Example: i want to call somebody with my address like or

My proposation is, to call someone foreign or local and he see only a phantasie adress like

I tried with your cpl script. but it doesnt work. What is the entry for" ???

Thanks for your feedback

Cisco Employee

Replacing Source Alias on VCS

The “” should be configured to “”.

If you are looking for source alias replacement for call from either and to external domain(s), then CPL may looks like follow;

========================================================================================" xmlns:xsi="" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">|">">


The “regex="(?!.*@%localdomains%) “ is indicating call destination that contain SIP domain which is not part of local VCS SIP domain configuration list.

This should simplify the CPL configuration if you are looking for CPL to rewrite sauce alias for multiple or all external domain calls.

Please note, source alias rewrite replace incoming alias to far end device (if redial from far end device, call will go through rewrite alias), but device name that display in far end device will still remain as original Endpoint configured name.

For example, far end device see as call come from peter.pan with alias of, if call made from to external device.


Replacing Source Alias on VCS

Hi Tomo,

Pattern matching variables such as %localdomains% are not supported in CPL.

The Admin guide - - states (page 368) "The VCS makes use of pattern matching in a number  of its features, namely Allow Lists and Deny Lists, presearch transforms and when configuring search rules and zone transforms." It doesn't mention CPL or Call policy rules at all.

Cisco Employee

Replacing Source Alias on VCS

Thanks Guy for pointing out this, I completely forgot about it when writing CPL.


Replacing Source Alias on VCS

Hi Tomo,

that is now?? :-)

Cisco Employee

Re: Replacing Source Alias on VCS

Try with this CPL.

===========================================================================" xmlns:xsi="" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">



This CPL will replace source URL to “” when and only when call initiate from either or to URL that is not contain domain name (assume is internal domain and anything else are treat as external call).

Cisco Employee


Assume and on same VCS (or authentication policy set to treated as authenticated or check credential on zone that call come from), then CPL should be like below.


<?xml version="1.0" encoding="UTF-8" ?>

<cpl xmlns="urn:ietf:params:xml:ns:cpl" xmlns:taa="" xmlns:xsi="" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">


<address-switch field="registered-origin">

<address regex="(peter\.pan|peter\.pan\.movi)@ciscotp\.com">

<taa:location clear="yes" regex="(.*@ciscotp\.com)(.*)" replace="\1\2" source-url-for-message="">






Re: Replacing Source Alias on VCS

Good Morning Tomonori,
I will try it this cpl. The cause for this cpl is, that nobody can call back to It should like a average central hotline number.
I will let you know about the behaviour if this cpl

Thank you very much

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Re: Replacing Source Alias on VCS

Hi everybody,

my hint for using an external policy server is.

1. make a new IIS publication on the tms.

2. write an asp script where you can check everything

It was a two day work now everything works perfectly.

But one question about this, the external policy server guide says, that only an allow or deny can be send back to the

vcs. Is there a chance to send them a new source-alias back?

Ok my question is not enough specified. How can I send a">

and the vcs uses this new location!?!?!?!

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