SRST problems

[MárcioQuarta]

Hello Everyone,

my question is this: I have a cucm 9.x that manages all my voip communication and at some point I need to keep communication if cucm falls so I configured the SRST in a 2911 that manages 3 sites: A, B and C

My surprise is that when I disconnect the communication with cucm the SRST goes up only to the phones installed in site C (where the equipment is physically installed) and in point A only the phone with model 6921 and note that to get to point A goes through point B according to the attached topology.

The 3 devices pool are directed to the SRST

[R0g22]

You are trying to enable SRST on a single site for 3 sites in total ?

[MárcioQuarta]

Hello Nipun ,

Yes , I've done this before and it's functional

[R0g22]

I have not come across such a design. Not sure if its valid or not. Just because something works and you have deployed it previously, does not make it a valid/supported design.

Coming to your issue though, is there reachability from the phones at A and B for the SRST router ? If you say yes, how have you verified it ?

[MárcioQuarta]

I can ping all the phones from the SRST router

Best regards