[cisco-voip] loopback SIP trunk for failover calls

[Brian Meade]

Lelio,

That sounds fine to me and how I've done it before.

Brian


On Tue, Apr 29, 2014 at 1:53 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

>
> We've built SIP trunks to our Nuance Speech Attendant servers, but have
> been told that in order to ensure failover in the event the servers are not
> responding, we need to build a loopback SIP trunk back to the CallManager
> servers so the call is handled.
>
> I'm not sure of all the SIP parameters we need, I'm gonna start with
> defaults, but heeding the old rule of "never allow a trunk to dial a number
> that can reach itself" I was going to do the following:
>
>    - create a SIP trunk with all cluster members as Destinations
>    - check "Run On All Active Unified CM Nodes"
>    - create a "SIP Loopback" partition and put only that partition into a
>    "SIP Loopback" search space
>    - in the "SIP Loopback" partition, create a translation for each route
>    pattern with the failover destination
>
> Any thoughts, will this give me what I need?
>
>
> Thanks, Lelio
>
>
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst, Network Infrastructure
> Computing and Communications Services (CCS)
> University of Guelph
>
> 519‐824‐4120 Ext 56354
> lelio at uoguelph.ca
> www.uoguelph.ca/ccs
> Room 037, Animal Science and Nutrition Building
> Guelph, Ontario, N1G 2W1
>
>
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>
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