I'm having the following situation that i don't know if its normal or not:
I have several ip phones (7911-7961) connected to a cluster and from time to time I see that the phones unregister from the callmanager and register with the srst router. From the sniffer traces i see that the phone send a keepalive to the cluster and for some reason the keepaliveAck does not reach to the phone (drop somewhere on the network, wan failure). In normal situation does the phone only tries to send the next keepalive after 30 sec(default value) or does the phone tries to resend the keepalive with a different timer (less than 30 sec).The behaviour that i'm having is if the phone does not receive the keepaliveack from the callmanager we tries in the next second to resend the keepalive message.
Can any one give an idea on how is this suppose to work.