ShoreTel 11.1 201
Legacy Integration
ShoreTel provides a migration solution from a legacy TDM-based voice network into the
voice-over-IP ShoreTel system. You can handle line growth and enable a migration of users
from the legacy system to the ShoreTel IP PBX by deploying the ShoreTel system at one
location in a multi-location enterprise, or side-by-side with a legacy PBX at a single
Integrating the ShoreTel system with your legacy PBX's allows users on the different
systems to communicate with each other effectively for both phone calls and using voice
With an integrated voice network, you can:
Simplify communications for your users with an enterprise-wide coordinated
dialing plan using extension dialing.
Exchange voice mail messages between users on different sites using different voice
mail systems. Standard commands such as compose, forward, and replay extend
the value of your different voice mail systems.
Consolidate trunks with different traffic types to leverage different service provider
Reduce service costs by redirecting inter-site calls across your IP network.
15.1 Checklist
Review the following topics before proceeding to the next chapter:
Task Description
Coordinated Dialing page 202
Trunk Requirements page 203
Coordinated Dialing Plan page 203
PSTN Services page 204
Multi-Site Integration page 204
Single Site Integration page 204
Consolidated Long Distance page 205
Voice Mail Integration page 205
System Requirements page 221
Table 15-1 Legacy Integration Checklist
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