Symptom
IP phones registered to SRST gateway during failover, will remain registered on SRST although the phones will fallback to CUCM when the service has been restored on CUCM.
Conditions
IP phones UNREGISTER message is not received on SRST and the phone remains registered to SRST.
Workaround
You can workaround this issue, by executing foll cmds on SRST:
Under voice register global,
no max-pool followed by
max-pool
Further Problem Description
IP phones registered to SRST gateway during failover, will remain registered on SRST although the phones will fallback to CUCM when the service has been restored on CUCM.