Hot Standby

The Hot Standby solution offers you the ability to provide high system availability, helping to prevent the unnecessary business loss caused by unexpected server failure.


The primary server and secondary server in the failover pair must meet the following requirements:

  • Same model
  • Same firmware version

You can set one PBX as a primary server, set another PBX as a secondary server. The hot-standby server (secondary server) can automatically and instantly take over if the primary server goes down. Callers still reach the people they need and business can continue as usual.