Avaya Communication Manager Administrator's Manual page 1600

Screen Reference
The Bearer Capability Class field appears when all of the following are true:
Either the ISDN-BRI Trunks field or the ISDN-PRI field on the System Parameters
●
Customer-Options screen is y.
The Group Type field is access, co, fx, tandem, tie, or wats.
●
The Comm Type field is data, avd, or rbavd.
●
Valid entries
0
1
2
3
4
Busy Threshold
Use this field if you want attendants to control access to outgoing and two-way trunk groups
during periods of high use. When the threshold is reached and the warning lamp for that trunk
group lights, the attendant can activate trunk group control: internal callers who dial out using a
trunk access code will be connected to the attendant, and the attendant can prioritize outgoing
calls for the last remaining trunks. Calls handled by AAR and ARS route patterns go out
normally.
Valid entries
1 to 255 (S8700
Series
IP-Connect)
1600 Administrator Guide for Avaya Communication Manager
Usage
For voice and voice-grade data
For 56 kbps synchronous data transmitted with robbed-bit signaling
Less than 19.2 kbps synchronous or asynchronous data
For 64 kbps data and LAPD protocol
For 64 kbps data on unrestricted channels
Usage
Enter the number of trunks that must be busy in order to light the warning
lamp on the Attendant Console. For example, if there are 30 trunks in the
group and you want to alert the attendant whenever 25 or more are in
use, enter 25.