different outgoing pots dial-peers for different calling partys (voip)

[jehanke]

Hello!

Maybe someone can help me with a call routing issue.

I have a voice-gateway (3620) with a VIC-2BRI-S/T-TE/NT connected to two different ISDN NTs and a ccm (3.2). Some of the IP Phones (lets say with number space 5xx) should use a certain NT for every outgoing call and other IP Phones (lets say with number space 4xx) should use the other NT for every outgoing calls. There should also no backup or load-sharing.

The reason for this is different billing for the two user groups.

Is there a way to get this work with one voice-gateway?

Thanks for your help

Jens

[ctrieu]

Hi,

You can configure two different pots dial-peers pointing to different voice-ports.

For instance,

dial-peer voice 400 pot

destination-pattern 4..

port x/y <<== where x/y is the bri slot/port number

dial-peer voice 500 pot

destination-pattern 5..

port x/z

Hope this help.

Chinh

[jehanke]

Hi Chinh,

our two BRI Interfaces are PSTN connections to the outside world. The IP Phones with number space 4xx should always use the first BRI for outgoing calls and vice versa. The number space 4xx and 5xx is located in the inside voip world.

I think your configuration example looks like the 4xx and 5xx users are connected behind the BRIs.

Jens

[ctrieu · Accepted solution]

Hi Jens,

Sorry for the mis-understanding. So, you want to controller which BRI interface to use based on the ANI information. Well, you can do the following:

- configure the CM to prefix a certain digit to the DNIS for all call coming from 4xx ip phones destine to this gateway.

- configure another different prefix for all call from 5xx ip phones to this gateway.

As a result, the router can now distinguish the call and can be configure with the appropriate dial-peers to match the DNIS with those define prefix. Thus, before sending call outbound to the PSTN, on the router, we can remove those added prefix.

Chinh

[jehanke]

Hi Chinh,

Nice hint, thanks for your help.

Jens