Administrator's Guide

Managing trunks
555-233-506414 Issue 5 October 2002
■ Outgoing Display — Typing y in this field allows display phones to show
the name and group number of the trunk group used for an outgoing call.
This information may be useful to you when you’re trying to diagnose
trunking problems.
■ Queue Length — Don’t create a queue for two-way loop-start trunks, or
you may have a problem with glare (the interference that happens when a
two-way trunk is seized simultaneously at both ends).
■ Trunk Type — Use ground-start signaling for two-way trunks whenever
possible: ground-start signaling avoids glare and provides answer
supervision from the far end. Try to use loop-start signaling only for
one-way trunks.
Related topics
See the Avaya MultiVantage™ Solutions Hardware Guide for information on the
types of circuit packs available and their capacities.
See your switch’s installation manual for installation instructions for circuit packs.
See ‘‘Routing outgoing calls’’ on page 247 for detailed information on Automatic
Route Selection.
Adding a CO, FX, or WATS trunk
group
Basic administration for Central Office (CO), Foreign Exchange (FX), and WATS
trunk groups is identical, so we’ve combined instructions for all 3 in the following
procedure. In most cases, Avaya recommends leaving the default settings in fields
that aren’t specifically mentioned in the following instructions. Your Avaya
representative or network service provider can give you more information. Your
settings in the following fields must match your provider’s settings:
■ Direction
■ Comm Type
■ Trunk Type
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CAUTION:
Use the list above as a starting point and talk to your service provider.
Depending on your particular application, you may need to coordinate
additional administration with your service provider.