Network Broadcast Flooding

[vondie]

Hello,
We have 50 or so T32 phones together with the 3cx software PBX. We are experiencing a problem with significant network traffic from the T3xP phones when the 3cx becomes unavailable. So much so, after recovering from an office wide power loss, it is very difficult for the domain controller to communicate on the network with the other servers as they are coming up. We do not have managed switches, so there is nothing I can do there, but is there anyway to reduce the network broadcast from these phones as they try to reestablish with the 3cx server?

Thanks,
Tim