External call block through expressway-E

[Dishani]

would  it be possible in cisco express-way-E  to block  external calls through calling party domain name.for example

scenario 1:  wanted to block all the external calls coming to expressway with calling party as xxxx@Skype and allow all the calls coming with calling party as webex.com.

scenario 2:wanted to block calls coming to expressway-E with calling party as xxxx@Skype and called party number 5555xxx and rest all calls allowed.

 would would be the CPL or search rule both the scenarios ?

[Adam Pawlowski]

You could do a rule like unauthenticated calls , to destination (.)*@Skype to reject.

In CPL this would look like:
<taa:rule unauthenticated-origin=".*" destination="(.)*@(Skype).*?"><reject status="403"/></taa:rule>

To do the other rule you will need CPL to match both parts of the call.
Maybe something like:

<taa:rule origin=".*" destination=".*" originating-zone="DefaultZone">
<reject status="403"/>
</taa:rule>

Note I just made this up may not work.

[Dishani]

Thanks for the response.

My setup is 

 Skype endpoint----> Expressway-E -- expressway-C |----MCU

                                                               |---- Meeting server

meeting server server URI starts with 55555xxxxx@Cisco.com

MCU URI starts with                           12345XXXX@cisco.com

 external calling number : xxxx@ skype.com

Looking for a CPL script  for blocking calls from  xxxx@ skype.com to 55555xxxxx@Cisco.com and   allow call from xxxx@ skype.com to 12345xxxxx@Cisco.com.