redundant voice gateway each with 1 E1 Line to PSTN

[Ibrahim Jamil]

Hi

i am looking for configuration example with 2 cisco Voice gateway each with 1 E1 Line connected  to PSTN Provider to achieve high availability

Thanks

[Chris Deren]

There is nothing unique about the GW configuration to make them redundant, they have to have matching configuration as all control is done on the call server i.e CUCM.  If using SIP for example you would have matching dial-peers on each GW and CUCM would route calls to redundant GW when needed.

Chris

[Ibrahim Jamil]

Hi Chriss

thanks for your reply

we have H323 , configured but i m looking for configuration example

thanks

[Chris Deren]

GW configuration or CUCM configuration?

There is nothing to the redundant GW that you would need beyond your existing GW configuration. If you are concerned about your existing config post it and we can provide feedback.

On CUCM side simply put both GWs into the same Route Group, or build new Route group pointing to the GW and add it to the existing Route List as second route group.

Chris

[Ibrahim Jamil]

Hi

thanks for your reply

can i load sharing the inbound and outbound call over these 2 E1s?

thanks

[Chris Deren]

Sure, just make sure the carrier puts them in the same trunk group for inbound redundancy, outbound is all in your control.

[Tagir Temirgaliyev]

just configure second router as first

ask provider to send the same inbound calls to second E1 if first fails

on CUCM make second gateway like first and route pattern like first

[Praveen.rishii]

As suggested by others, inbound redundancy (Load balancing) should be done by the service provider, So they need to need to be from the same service provider (part of the same trunk).

Outbound is to add both the gateways in the RG and using circular algorithm.

Regards,

Praveen.

[Ritesh Desai]

Thanks for this question and solved my query.

regards,

Ritesh Desai.