Avaya Communication Manager Administrator's Manual page 1538

Screen Reference
Auto Guard
This field appears if the Group Type field is co or fx. This field controls ports only on TN438B,
TN465B, and TN2147 circuit packs. TN438B ports have hardware support for detecting a
defective trunk. TN465B and TN2147 ports consider a trunk defective if no dial tone is detected
on an outgoing call, and the Outpulse Without Tone field is n on the
Parameters screen.
Valid entries
y/n
BCC
Generalized Route Selection uses the BCC to select the appropriate facilities for routing voice
and data calls. Far-end tandem servers/switches also use the BCC to select outgoing routing
facilities with equivalent BCC classes.The entry in the Bearer Capability Class field is used to
select the appropriate facilities for incoming ISDN calls. Avaya Communication Manager
compares the entry in the BCC field to the value of the Bearer Capability information element
for the incoming call and routes the call over appropriate facilities. For example, a call with BCC
4 will only be connected through facilities that support 64 kbps data transmission.
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
1538 Administrator Guide for Avaya Communication Manager
Usage
Enter y to prevent repeated seizures of a defective
trunk. Communication Manager will do a maintenance
busy-out on these trunks.
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
Feature-Related System