CUCM6 and 881SRST

Unanswered Question
Mar 24th, 2009

I've been looking over the docs and it looks like the 881 ISR is currently only supported on CUCM7.

Has anyone configured the FXO port for use on another version of CUCM? If so how did you so so?



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Overall Rating: 4.5 (3 ratings)
Jaime Valencia Tue, 03/24/2009 - 20:12

you can use H323 independently of CUCM version as long as the IOS has voice capabilities so you can configure the dial-peers



if this helps, please rate

acjarvis Tue, 03/24/2009 - 20:26


Thanks for the assistance. I'm was looking through the guides for H323 and configuring the gateway, and fxo,fxs ports.

I'm looking on the site for configuration examples.

Jaime Valencia Wed, 03/25/2009 - 08:03

there are plenty of examples, hard to believe you didn't run into one

Cisco IOS H.323 Gateway Configuration for Use with Cisco CallManager

Cisco IOS H.323 Configuration Guide, Release 12.4T



if this helps, please rate

acjarvis Wed, 03/25/2009 - 08:31

Sorry I never updated the thread. I did find plenty of examples it was just the matter of getting the right config together to use the FXO/FXS ports.

There are still some issues I'm working out with the FXS port saying its on-hook but not generating dial tone on the FXS port after it received a call that came inbound in the FXO port.


andresfmg Thu, 12/15/2011 - 13:44

I have a simple question, the 881SRTS router can be register with a CUCM 7 and work has a remote gateway (SCCP,MGCP or H323) with FXO lines ?


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