Voicemail Pro Networked Messaging (VPNM) allows users to forward voicemails mailboxes on remote voicemail systems This is done by adding a VPNM component to the Voicemail Pro installation.
The messages are transferred between systems using an SMTP/MIME mail format to encode both the voice part of the message and additional message details. The
Below is a diagram of VPNM between two IP Office systems.

Below is a diagram of a sample VPNM configuration between an IP Office and Avaya Interchange. Depending on how your IP Network is set-up, the configuration will alter slightly.

Up to 2000 mailboxes are supported per VPNM server and there is no constraint on the number of VPNM servers. However, to distinguish between dial plans you may need to allocate a dial pre-fix to each server. There are a maximum of 99 pre-fixes available.
This section summarizes the steps required in installing VPNM between two IP Office systems and between an IP Office system and an Intuity Audix system through Avaya Interchange.
This document should be used in conjunction with the other Avaya manuals, for example "Avaya Interchange Release 5.4, Adding a VPIM System to Your Network" (the setup for Interchange VPIM is the same as for VPNM).
Requirements for VPNM
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