Avaya Communication Manager Administrator's Manual page 1414

Feature Reference
Call charge information
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Unformatted (Enhanced 24-word standard ASCII)
•
If you want call charges to restart at 0 for calls that are forwarded or transferred, administer
Trk Call Splitting
Attendant consoles
Automatic Charge Display Mode does not apply to attendant consoles. The attendant must always press a
button to enter display mode.
Performance impact
Call Charge Information can impact system performance in several ways. The information coming in
over ISDN trunks takes up bandwidth, and reduces the maximum amount of traffic the ISDN D-channel
can handle. This is especially true in countries such as Germany and France, where the network sends
charging information updates as often as every 3 to 10 seconds for each active international call.
The number of sets that display charge information and the frequency of updates also affect performance.
Normally, the update frequency should match the average rate at which call charge updates are received
from the public network.
CAUTION:
Updating displays too frequently can cause unnecessary system performance degradation.
If performance slows to an unacceptable rate, you may need to lengthen the amount of
time between updates.
Button operations
If you administer a button for charge display, the display-set user can press the disp-chrg button at any
time during the call to see the current charges. If your public network sends charge information only at
the end of a call, display-set users must have this button and press it just before they hang up. After the
call drops, the charge will appear.
Other display functions
If a user invokes the elapsed-timer display, the timer may overwrite part of the charge display. If the user
has a local directory (Dir button), and presses this button while a call is in charge display mode, the
call-charge information will overwrite the directory any time an update comes in. To avoid this, the user
must press Exit or Normal.
1414
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Administrator's Guide for Avaya Communication Manager
Outg
November 2003