We have a dozen sites with H323/SRST, on the last weekend we have a window maintenance on CCM Cluster(5.1.3). So, all the site works on srst no problem. But when the cluster CCM back works, few phones register no CCM, 90% of phones stay on srst. Time? I doubt, because the phones on 30 hours still unregistered on CCM.
To resolve it, we reset the phones on srst (call-manager-fallback).
Is there any configuration on H323/SRST to resolve it?