SRST and Auto Attendant

[e-toker]

We have a router in branch office which runs SRST. I would like to route the PSTN incoming calls to 300 for Auto Attendant. But when a WAN link goes down I want these calls to be directed to an internal ipphone with DN 200. I know how to do this when the router is MGCP. But couldnot manage to do with H323.

With connection plar and translation rules it doesnot work.

[Aaron Harrison]

Can you post your config for review?

First you'll need to know the number being supplied by the PSTN - i.e. number of digits (this may be more than you get to your CM, as you can set a lower number of significant digits when you register the gateway). Then create a translation rule that translates this to your DN 200.

Translation rule 1

rule 1 ^numbersuppliedbypstn 200

You should have a dial-peer with your POTS port configured in it - to this you can apply the translation rule

translate called 1

This assumes you've got MGCP fallback working OK - if you can post your config we can check it..

[e-toker]

The gateway is H323 not MGCP. We have 6 PSTN lines connected to FXO ports. I want all incoming calls to be routed to AutoAttendant.CTI RP number is 300. Everything is ok when I add connection plar 300 under fxo ports. But when WAN link goes down and all IPPhones register to SRST router, I want all incoming calls to be directed to an IPPhone with the directory number 200. How can I manage to do this?

[jvmessina]

This might help depending on the srst version

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_11/srst32ad/srs_call.htm#wp1377646

Router(config-cm-fallback)# alias 1 300 to 200

or with older srst

Router(config)# call-manager-fallback

Router(config-cm-fallback)# default-destination 200

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122z/122zj15/srscr30/srs_a_m.htm#wp1422335