Installation guide

Recommendations Trunk Planning and Ordering
5
ShoreTel 14.2 Planning and Installation Guide 87
Recommendations
The following recommendations assist you in determining your trunk requirements and ordering your
trunks from your service provider:
 Make sure you order telephone service early. T1 and PRI service can take up to one or two
months to install.
 If you are reusing Centrex lines, be sure to change your old service and remove call waiting, call
forwarding, and voice mail.
 When provisioning PRI service, be sure to confirm the protocol being used. The protocol may be
NI-2, 4ESS, 5ESS, or DMS-100. Make sure that neither Non-Facility Associated Signalling (NFAS)
nor the Call-by-Call feature of the 4ESS is being used, since they are not supported on the
ShoreTel system.
Reviewing and Selecting Trunk Types
Trunks provide a connection from the ShoreTel system to a service provider for the purpose of making
and taking calls to and from external parties.
Table 19 shows which trunk types are supported on individual ShoreTel Voice Switches. The next
section provides more detailed information about the various trunk features.
Table 19: Supported Trunk Types
Voice Switch
Analog
Loop-Start
(North.Amer.)
Analog
Loop-
Start
EMEA
Digital
Loop-
Start
Analog
Wink-
Start
Digital
Wink-
Start
T1
PRI
E1
PRI
SIP BRI
ShoreTel 90 Yes Yes No Yes No No No Yes No
ShoreTel 90BRI No No No No No No No Yes Yes
ShoreTel 50 Yes Yes No Yes No No No Yes No
ShoreTel 30 Yes Yes No Yes No No No Yes No
ShoreTel 220E1 No No No No No No Yes Yes No
ShoreTel 220T1 No No Yes No Yes Yes No Yes No
ShoreTel 220T1A Yes No Yes No Yes Yes No Yes No
ShoreTel T1k No No Yes No Yes Yes No No No
ShoreTel 120 Yes No No Yes No No No Yes No
ShoreTel 60 Yes No No Yes No No No Yes No
ShoreTel 40 Yes No No Yes No No No Yes No