AT&T System 85 User Manual
Page 53

CHAPTER 4. OPERATING FEATURES
Automatic Circuit Assurance (ACA)
Provides you with better service through early detection of faulty trunks. You can activate
ACA by dialing the ACA Start Code. Once you have activated ACA; the system begins to
measure the duration of calls on the trunk groups assigned to the ACA feature. If you are in
a Tenant Services environment and you are an attendant in any partition other than partition
0 (zero), you are not allowed to activate, deactivate, or answer ACA referral calls.
When a large number of very short calls are made, due perhaps to callers hanging up
because of a noisy trunk, a referral call is made to your console. Alphanumeric display
shows
TBLS
(trouble short holding).
When a trunk remains busy for a long period, a referral call is made to your console.
Alphanumeric display shows
TBLL
(trouble long holding).
T R K
You can immediately identify the faulty trunk by pressing during a referral call.
I D
To activate ACA:
1.
Press an idle loop button.
ATND light goes on. PA light goes off.
2.
Press
[START]
.
Listen for dial tone.
3.
Dial ACA Start Code.
Listen for confirmation
4 .
Press
[RELEASE]
.
tone.
ATND light goes off. PA light goes on.
To cancel ACA:
1.
Press an idle loop button.
ATND light goes on. PA light goes off.
2 .
Press
[START]
.
Listen for dial tone.
3.
Dial ACA Stop Code.
Listen for confirmation tone.
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