![]() In this case, individual PBXs are setup in a tree-like structure with one being the master. enhanced availability for remote locations.There may be several reasons to use multiple PBXs in a customer installation: In other words, an IP811 may well stand in for an IP411. The only requirement is that the standby can handle as much registrations and object definitions as the failing master had, so it is able to take over. It will go back to standby mode as soon as the master is available again.Ī standby doesn't need to be a physical duplicate of the master PBX. ![]() It will start to accept registrations and thus become the active PBX. When the active PBX fails, the standby will consider the PBX lost. This is done by registering to the active PBX. ![]() In normal operation, a standby PBX does not accept any registrations and does nothing except monitoring the PBX it is a standby for. This is a gateway device that can take over the role of the master should it fail for whatever reason. To ensure maximum availability, a PBX can have a duplicate, known as standby. ![]() To setup a PBX as master, you need to set the PBX Mode property in the PBX / Config / General tab to Master. VoIP devices involved register to this PBX. In a simple case, a PBX is running on a single gateway device.
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