Installation guide

354 Planning and Installation Guide ShoreTel 14.2
Legacy Integration Connection Cable
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If PRI is used in the integration interface, the legacy PBX must emulate the CO or support Network
Side PRI.
Connection Cable
Special Considerations — Nortel PBX
When integrating with a Nortel Meridian PBX, a T1 connection must be used since the legacy system
does not support Network Side PRI.
Special Considerations — Avaya/Lucent PBX
Universal Dial Plan (UDP) Must be Active — This capability enables transparent dialing between the
Avaya/Lucent PBX and the ShoreTel system. If this is not active, users on the PBX will either have to
dial a trunk access code to reach the users on the ShoreTel system, or configure forwarding from an
extension in the legacy system to the ShoreTel extension using the trunk access code and the
extension.
In some cases, this feature must be purchased separately from Avaya/Lucent.
Administration and Configuration
Tie Trunk Configuration
The following summary describes the administration and configuration of the digital trunk for
connecting the ShoreTel system to the legacy system.
Services Summary
Before starting, a summary of the required configuration should be made based on the required
services in the interface.