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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1197Call Charge Information
20
■ Int-ISDN (International ISDN expanded)
■ Int-process
■ Unformatted (Enhanced 24-word standard ASCII)
■ If you want call charges to restart at 0 for calls that are forwarded or
transferred, administer Outg 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.