Avaya Communication Manager Administrator's Manual page 1196

Screen Reference
Carrier Medium
This field lets you to specify the type of transport medium interface used for the ISDN trunk
group. Appears only when the Group Type field is isdn and, on the System-Parameters
Customer-Options screen, either the Async. Transfer Mode (ATM) Trunking field or the
H.323 field is set to y.
Valid entries
ATM
H.323
PRI/BRI
Charge Advice
Use this field to accumulate and access charge information about a call. You already must have
set the CDR Reports field to y or r (ring-intvl) before changing this field from its default of none.
Remember that receiving Advice of Charge during the call (administered as "automatic" or
"during-on-request") affects system performance because of the increased ISDN message
activity on the signaling channel, which might reduce the maximum call capacity.
Valid entries
none
automatic
end-on-
request
during-on-
request
1196 Administrator Guide for Avaya Communication Manager
Usage
The trunk is implemented via the ATM Interface circuit pack.
The trunk is implemented as an H.323 trunk group.
The trunk is implemented as a standard DS1 or BRI interface.
Usage
Enter none if you do not want the system to collect Advice of Charge
information for this trunk group.
Enter automatic only if your public network sends Advice of Charge
information automatically.
Enter end-on-request if Avaya Communication Manager must request
charge information with each call, and you want to receive only the final
call charge.
Enter during-on-request if Avaya Communication Manager must request
charge information with each call, and you want charges to display during
and at the end of a call.