Adtran 908e in stateful proxy mode for Wan failover

[tetu04]

Hello all,

     I have an Adtran 908e at a costumer site that uses a T1 as the main voice uplink and the existing broadband for back-up. The phones are all polycom vvx300 and a few vvx500s. The phones register to an external softswitch (Broadworks) and the phone configurations also reside on the voice carrier tftp servers that I cannot control. The registration timers are set for one hour, and when i asked the voice carrier to change them to 5 minutes, they refused since it would increase the network traffic. Currently, if the T1 fails the phones would have to be rebooted to register out the Ethernet back-up link. I was hoping that when the Adtran changes routes from the PPP 1 interface to the ETH 0/2 (back-up) in case of a wan failure, it would also make the phones register out the back-up link. Is something like that possible with the stateful proxy mode or any other proxy modes?

Thanks in advance,

Adrian

[Anonymous · Accepted solution]

Adrian,

Thanks for posting!  Unfortunately, we currently do not have a feature that will trigger fresh SIP registrations or otherwise allow out rate-adapted SIP registrations in the event of a failover. Short registration timers are the only "automatic" solution to this problem at this time.  However, we have submitted a feature request for this, and hope to have a better solution in the future.

Thanks!

David

[tetu04]

Thanks for the reply David! I believe we have discussed this issue thorough one of the tickets that I had open with Adtran Support. This failover scenario was a deciding factor for the customer to sign with us over the competition. Now it is a little difficult to abide by it since the voice carrier will not allow us to change the registrations timers on the phones from one hour to 5 minutes, or less. The trigger has to be done on the Adtran. The carrier suggested we use a Edgewater Edgemarc device since they are capable of this task. We prefer to stick to Adtran, but this feature is critical for a lot of our customers. Are you aware of Adtran giving this feature request a lot of consideration or if it is still just on the horizon without any sort of priority? It would be great if the support community can all vote in favor of it !!  

Thanks,

Adrian

[tetu04]

Hello David,

It seems that after a year of waiting, AOS 11.6.0.SA has just been recently released that addresses the feature request mentioned in this discussion. I am unable to find a configuration guide that shows how to set it up. Are you able to forward that to me?

Thanks,

Adrian