SIP in higher education

[Steve Blair <>]

Jeremy:

  In my experience these phones resolve the SRV record
once upon boot then not again until reboot. Perhaps they
actually resolve the record upon registration/re-registration.
I haven;t had a chance to try that.  Maybe as an alternative
you could define a backup_proxy for the phone. I'm not
sure how this would work if you only have one
SRV record for your domain.

-Steve

Jeremy George wrote:

>   I have Cisco's CSPS v2.2 configured as the primary proxy and 
> Iptel.org's
> SER v0.8.14 configured as a backup proxy.  I'm using Cisco 79XX phones
> configured for those servers and using CSPS as an outbound proxy.
> Additionally I have a Cisco 37?5 gateway configured to use a hunt group
> inbound from the PSTN, preferring CSPS and then trying SER.
>
>   Testing the failover this morning by shutting off CSPS showed that
> inbound calls went immediately to SER without missing a beat.  The
> biggest problem might be that I could lose my primary proxy without
> knowing it.
>
>   However, outbound calls seem to require manual re-configuration on
> the phones.  Is this right?  Does anyone know of a way to get 79XXs
> to failover the outbound proxy automatically to a backup?
>
> - Jeremy


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