DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Features and technical reference
1141Answer detection
20
Example of authorization codes with AFRLs
Answer detection
For proper call detail recording and accurate billing, you need to know when your
outgoing calls are answered. Answer detection means the method a switch uses to
determine whether an outgoing call has been answered.
Brief description
DEFINITY ECS provides 3 ways to determine whether the called party has
answered a call.
Call classification
A call-classifier circuit pack detects tones and voice-frequency signals on the line
to determine whether a call has been answere d. This method is fairly accurate:
calls that are answered normally are usua lly classified correctly. But there are
exceptions:
■Miscellaneous tones, such as confirmation tones, may be classified as
answers.
■Loud background noise may activate answer detection, causing a call to be
classified as answered even if the call is not connected.
3
0
3
7
6
5
4
3
2
1
AFRL FRL
COR to FRL Table Authorization code to COR Table
7
5
FRL to AFRL Table
3
1
4
3
2
1
FRL COR
3
3
2
3
COR
2222222
1234569
1234568
1234567
Authorization Code
Trunk Desired COR is 4
Originator COR is 1
7
7
7
7
3
3