Avaya Communication Manager Administrator's Manual page 1625

This applies only to the TN2199 port.
Valid entries
AandB
AorB
Drop Treatment
This field only applies to DID trunks. It determines what the calling party hears when the called
party terminates an incoming call.
Valid entries
intercept
busy
silence
Note:
In Italy, the Drop Treatment field must be administered as intercept for all DID
Note:
trunk groups.
Duplex
This field specifies whether a two-way trunk group allows simultaneous transmission in both
directions. This field appears when the Comm Type field is avd or rbavd. It also appears if the
Comm Type field is data, but only if the ISDN-PRI field is enabled on the
Customer-Options
Note:
Even if the trunk group supports full-duplex transmission, other equipment in a
Note:
circuit might not.
Valid entries
full
half
Usage
Both parties control the disconnect.
Either party controls the disconnect.
Usage
Select one. For security reasons, it's better to apply a tone: silence could
provide an opening for hackers.
screen.
Usage
Enter full in most cases: this allows simultaneous two-way transmission,
which is most efficient.
Enter half to support only one transmission direction at a time.
Trunk Group
System-Parameters
Issue 2.1 May 2006 1625