Specifications

ShoreTel 7.5 Administration Guide 4 – 1
C HAPTER 4
Configuring Application
Servers
This chapter explains how to set up servers in a ShoreTel system. This chapter provides
information on:
• ShoreTel servers
• Distributed voice mail servers
• Legacy voice mail integration
• How to add servers to the system
Overview
The ShoreTel system supports not only distributed call control, but also distributed
voice application servers. Distributed servers are extremely valuable for two purposes:
• Reducing WAN bandwidth by providing local voice mail and auto-attendant
services
• Increasing the scale of the system
Even though there are multiple servers, the ShoreTel system provides a single image of
your entire network. The system is currently certified to support up to 21 servers, one
main server and up to 20 distributed servers. You should begin to consider adding a
server at a site when the site exceeds 100 users. You also need to add a new server for
every 1,000 users.
The distributed servers run the following voice applications:
• Voice Mail—Each server supports 254 simultaneous voice mail or auto-attendant
connections. The voice mail system uses SMTP to transport composed messages
between the distributed servers. The ShoreTel system also supports linking to
legacy voice mail systems using AMIS protocols.
• Auto-Attendant—The system supports up to 256 menus that are hosted on every
server, and each server provides 64 voice mail/auto-attendant connections.
• Configuration—The system enables users to log in and make configuration
changes (call handling modes, etc.) from their ShoreTel Call Managers or from the
Web Access call handling mode client.