Lucent Technologies 8.2 User Manual

Issue 1

April 2000

Managing trunks 

361

Administering answer detection 

For absorption, this field defines how many digits will be absorbed. The 
switch will remove the first 2 digits from the digit strings delivered with 
incoming calls. For example, if the central office delivers the string 
“556-4444,” DEFINITY ECS will change it to “64444,” an extension that 
fits your dial plan.

4. In the Expected Digits field, type 

.

This field tells the switch how many digits the central office sends.

The Expected digits field doesn’t appear on the screen for tie trunk 
groups.

5. Press 

ENTER

 to save your changes.

Refer to 

‘‘Adding a DID trunk group’’ on page 343

 for instructions on 

administering a DID trunk group.

Refer to 

‘‘Adding a Tie or Access trunk group’’ on page 348

 for instructions on 

administering a tie trunk group.

Use this procedure to administer an outgoing or two-way trunk group for network 
answer supervision or answer supervision by timeout. If your network supplies 
answer supervision to a trunk group, you can administer DEFINITY ECS to 
recognize and respond to that signal. If your network does not supply answer 
supervision, you can set a timer for all calls on that group. When the timer expires, 
the switch assumes the call has been answered and call detail recording starts (if 
you’re using CDR).

For information about answer detection by call classification, contact your Lucent 
representative or refer to 

‘‘Answer detection’’ on page 1141

 for an introduction.

Determine whether the trunk group receives answer supervision from your service 
provider or private network. For example, most loop-start CO, FX, and WATS 
trunks do not provide answer supervision.