The IP Office Server Edition network can include two voicemail servers, one on the primary server and one on the secondary server. The two servers automatically synchronize during normal operation and can provide voicemail support for the other users during resilience.
By default, the primary and secondary servers each include the voicemail service. The method by which these are used depends on the type of network:
IP Office Server Edition: In this mode, the voicemail server on the primary is active and provides voicemail services for the whole network during normal operation. The voicemail server on the secondary remains in standby mode. However, during resilience, the voicemail server on the secondary can become active and provide voicemail services. When the primary voicemail is available again, by default the secondary voicemail returns to standby mode.
IP Office Select: For IP Office Select the voicemail services on the primary and secondary severs can be used in two ways as follows:
Single active server/standby server: The voicemail services are configured to operate in the same way as for IP Office Server Edition above. The secondary acts as the failover server for the primary.
Dual active voicemail servers: The voicemail services on both servers can be configured to be active at the same time during normal operation (this requires the secondary server to be configured with the appropriate voicemail licenses, etc.). In this mode, each server provides voicemail services for its own extensions and trunks. Each expansion system is configured to use either the primary or secondary voicemail server. Each voicemail server can act as the failover server for the others voicemail.
During resilience, the IP Office system informs Avaya one-X® Portal for IP Office and other applications which voicemail server to use. The same information is also applied to all user voicemail access.
Both voicemail servers are constantly synchronizing settings, callflow configurations and mailboxes during normal operation. This is done using SMTP connections between the two voicemail severs. Following resilience, the same connections are used to re-synch the servers. Following any voicemail resilience, normal operation is not resumed until SMTP synchronization has restarted.
