Lucent Technologies 8.2 User Manual

Issue 1

April 2000

Managing trunks 

340

Adding a CO, FX, or WATS trunk group 

■

Outgoing Display — Typing 

 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.

Refer to the DEFINITY ECS System Description for information on the types of 
circuit packs available and their capacities.

Refer to your switch’s installation manual for installation instructions for circuit 
packs.

Refer to 

‘‘Routing outgoing calls’’ on page 173

 for detailed information on 

Automatic Route Selection.

Basic administration for Central Office (CO), Foreign Exchange (FX), and Wide 
Area Telecommunication Service (WATS) trunk groups is identical, so we’ve 
combined instructions for all 3 in the following procedure. In most cases, Lucent 
recommends leaving the default settings in fields that aren’t specifically 
mentioned in the following instructions. Your Lucent 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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