Avaya Communication Manager Administrator's Manual page 1635

Synchronization
This field determines whether the trunk group will use synchronous or asynchronous
communications. This field appears if:
the Group Type field is dmi-bos or isdn, or
●
the Group Type field is access, co, fx, tandem, tie, or wats and the Comm Type field is
●
avd or rbavd, or
the Group Type field is access, co, fx, tandem, tie, or wats, the Comm Type field is
●
data, and the ISDN-PRI field or the ISDN-BRI Trunks field is y on the
System-Parameters Customer-Options screen.
Valid entries
async
sync
Trunk Gain
This field specifies the amplification applied to the trunks in this group. With the values of the
Trunk Termination and Country fields, the value in this field also determines the input and
trans-hybrid balance impedance for TN465B, TN2146, TN2147, and TN2184 ports. All other
CO and DID circuit packs are set automatically to high
Valid entries
high
low
Usage
Do not change this field without the assistance of Avaya or your network
service provider.
Usage
Enter high if users complain of low volume.
Enter low if users complain of squeal or feedback.
Trunk Group
Issue 2.1 May 2006 1635