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

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

Replacing Source Alias on VCS

Hi

Is there a possibility to replace/overwrite/delete a source alias (H.323 Id or SIP URI) of a call on a VCS based on the original source alias?

All the tools on VCS like Transforms, Search Rules and even CPL only seem to change the destination alias.

Any examples would be appreciated if possible

Many thanks in advance

Regards

Stefan

Everyone's tags (3)
26 REPLIES
New Member

Replacing Source Alias on VCS

The FindMe option alllows for you to repalce the source URI with the Find me name

New Member

Replacing Source Alias on VCS

Hi Garvan

Thanks for the reply but FindMe won't help because the source alias is not that of a local user.

Regards

Stefan

VIP Super Bronze

Replacing Source Alias on VCS

No unfortunately. If using SIP you could push the call through UC Manager and manipulate it using Normalization Scripts or IOS using SIP Profiles though.

Please remember to rate helpful responses and identify helpful or
New Member

Re: Replacing Source Alias on VCS

Since dial rules and transforms only apply to the destination address, if there are particular endpoints you want special treatment for you could have them use a unique prefix for all destinations they dial.  Regex can match the prefix and apply a rule.  It will not change the source alias.       

Gold

Re: Replacing Source Alias on VCS

Hi Stefan,

We are planning to include a new feature in VCS X7.2 which will allow you to rewrite source aliases using CPL.

X7.2 is due for release quite soon, and if everything goes to plan, you should find information about this feature in the X7.2 release notes once available.

Regards

Andreas

New Member

Replacing Source Alias on VCS

I have installed VCS X7.2 and was wondering how I can rewrite the source alias using CPL. I have looked through the documentation and did not find an example of how to do this.

Thanks,

Derek

Replacing Source Alias on VCS

take a look at page 350 of the vcs admin guide

Please remember to rate helpful responses and identify

New Member

Replacing Source Alias on VCS

Thanks, but I am still not sure what the syntax will be. When I receive a call from an H323 device, I see it as H323name@ip address. I want it to appear as H323name@domain.name . Could you fill in the blanks for me on what the syntax will be? None of the examples in the documentation show an example of a rule-switch and replace.

http://www.tandberg.net/cpl-extensions " xmlns:xsi="

http://www.w3.org/2001/XMLSchema-instance " xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">

 

 

Gold

Replacing Source Alias on VCS

Here is a basic example on how to do source rewrite via CPL:

http://www.tandberg.net/cpl-extensions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">

old-source@domain.com">

new-destination@domain.com" source-url-for-message="new-source@domain.com">

This CPL will match a call from an authenticated call from an endpoint with a source address of "old-source@domain.com", where the source alias is rewritten to "new-source@domain.com" and the destination alias is changed from whatever it was to "new-destination@domain.com". This is similar to what would happen when calling a FindMe alias and using FindMe source rewrite.

It is also possible to preserve the original destination alias when using the clause while rewriting the source alias, for example with

new-source@domain.com">

It would probably make the most sense to implement CPL source rewrite by using an external Policy Server in order to do rewriting dynamically, since you would need a relatively large static CPL script to perform rewriting for a high number of endpoints.

Hope this helps!

- Andreas

New Member

Re: Replacing Source Alias on VCS

Thank you for this info! I was to get it to do what I needed with this. The next step is how do I add another source and destination for other endpoints. Or is it possible to use a regex to maintain the source host name and just change the domain portion?

Sent from Cisco Technical Support iPhone App

Gold

Re: Replacing Source Alias on VCS

If you need to add more source/destination pairs, you can add more

and sections, but as I mentioned, writing this manually and maintaining a static CPL file for doing this could get very cumbersome.

Instead you could implement a Policy server using your language of choice (PHP, Perl, Python and so forth) and automate this process.

- Andreas

New Member

Hello awinter2,I understand

Hello awinter2,

I understand that VCX X8.1 introduced  new capabilitites to modify the Source URI.

Do you know of any good tutorial or source for new CPL Example scripts showing how to use these new capabilities?

 

I am currently having a similar issue and would like to get it resolved.  TAC is not supporting CPL.

 

Thanks

New Member

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 peter.pan@company.com or peter.pan.movi@company.com

My proposation is, to call someone foreign or local and he see only a phantasie adress like unknown@company.com.

I tried with your cpl script. but it doesnt work. What is the entry for new-source@domain.com" ???

Thanks for your feedback

New Member

I know this is an old post,

I know this is an old post, but does anyone have this CPL script?  It appears all examples on the site are horked up due to formatting with the new site designs.

 

Thanks!

New Member

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?

Sent from Cisco Technical Support iPhone App

New Member

Replacing Source Alias on VCS

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

F.

New Member

Replacing Source Alias on VCS

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

New Member

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 peter.pan@company.com or peter.pan.movi@company.com

My proposation is, to call someone foreign or local and he see only a phantasie adress like unknown@company.com.

I tried with your cpl script. but it doesnt work. What is the entry for new-source@domain.com" ???

Thanks for your feedback

Cisco Employee

Replacing Source Alias on VCS

The “new-source@domain.com” should be configured to “unknown@company.com”.

If you are looking for source alias replacement for call from either peter.pan@company.com and peter.pan.movi@company.com to external domain(s), then CPL may looks like follow;

========================================================================================

http://www.tandberg.net/cpl-extensions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">

peter.pan@company.com|peter.pan.movi@company.com)">

unknown@company.com">

========================================================================================

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 unknown@company.com, if call made from peter.pan@company.com to external device.

Cisco Employee

Replacing Source Alias on VCS

Hi Tomo,

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

The Admin guide -

http://www.cisco.com/en/US/docs/telepresence/infrastructure/vcs/admin_guide/Cisco_VCS_Administrator_Guide_X7-2.pdf - 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.

New Member

Replacing Source Alias on VCS

Hi Tomo,

that is now?? :-)

Cisco Employee

Re: Replacing Source Alias on VCS

Try with this CPL.

===========================================================================

http://www.tandberg.net/cpl-extensions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">

peter\.pan@company\.com|peter\.pan\.movi@company\.com)">

unknown@company.com">

===========================================================================

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

Cisco Employee

Assume peter.pan@company.com

Assume peter.pan@company.com and peter.pan.movi@company.com 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="http://www.tandberg.net/cpl-extensions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">

<taa:routed>

<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="unknown@company.com">

</taa:location>

</address>

</address-switch>

</taa:routed>

New Member

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 unknown@company.com. It should like a average central hotline number.
I will let you know about the behaviour if this cpl

Thank you very much

Sent from Cisco Technical Support iPhone App

New Member

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

unknown@company.com">

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

4637
Views
15
Helpful
26
Replies