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User Guide V
2
IU 4300T Converged Network Appliance
3 - 46
prioritized list of available network based call processing servers. The V
2
IU
appliance using periodic messages monitors each server and the highest
priority server that is currently reachable will be used for call processing. This
feature can also be used to load balance or distribute calls among multiple
servers however state replication is required by the call processing servers to
provide full redundancy.
Platform Support
V
2
IU Converged Network Appliances
• 4300T Series
• 5300 Series
• 6400 Series
IP Phones
• Polycom IP500 & IP600
• Cisco
PSTN Gateways
• Audiocodes MP-104/108
Configuring VoIP Survivability in V
2
IU Appliances
Configuring VoIP survivability in V
2
IU appliances consists of the following
tasks:
1. Enable VoIP survivability.
2. Configure call processing server reachability settings (optional).
3. Specify the number of digits to use for local dialing (optional).
4. Configure the IP address of the local LAN side PSTN gateway (optional).
5. Configure call processing server redundancy (optional).
Please note that this configuration requires that you have completed the basic
installation of the V
2
IU appliance including interface, IP, traffic management
and VoIP configurations. Information regarding these tasks can be found in
the “info” section of the V
2
IU appliance, or the User Manual.