Interactions for Call Charge Information

Last Updated : Oct 30, 2012 |

This section provides information about how the Call Charge Information feature interacts with other features on the system. Use this information to ensure that you receive the maximum benefits of Call Charge Information in any feature configuration.

Attendant Features

Attendant consoles cannot have an automatic charge display. If you want the attendant to see call charges, you must assign a disp-chrg button to the attendant console. If the attendant transfers an outgoing call, the display returns to normal mode. If the transfer is not completed, or the call remains at the attendant console, the attendant must press the disp-chrg button again to view call charges.

Automatic Incoming Call Display

If a user has charges displayed for an existing call, and a second call rings on another line appearance, the display returns to normal mode for a short time to show the identity of the caller. The user must press the disp-chrg again to view call charges. Or if automatic charge display is enabled, the user must wait for the Charge Display Update Frequency interval to expire.

Bridged Appearance

If a user uses a bridged call appearance to place a call, the system displays the call charges on the telephone from which the call is made. If Automatic Charge Display is part of the Class of Restriction (COR) for that telephone, the system displays the charges automatically. The system displays the actual charge for the call on the Call Detail Recording (CDR) report as if the call was made from the principal extension, and not from the bridged appearance.

Call Coverage or Call Forwarding

Call charges for a call to an extension that the system redirects over a public network trunk, are charged to the called extension, not the calling extension. However, if the call is placed from an internal telephone that has charge display capability, the caller sees the charges for the redirected call.

Call Park

When a user parks a call, the display mode returns to normal. If a user retrieves a parked, outgoing call from another display telephone, the display on that set shows the current call charges if the user presses the disp-chrg button. The display also shows the charges if the Class of Restriction (COR) of the user supports Automatic Charge Display. If call splitting is enabled, the display shows the charges that accumulated since the user unparked the call.

Call Transfer

Advice of Charge (AOC) administration for the outgoing trunk group controls whether AOC information is requested or recorded for the call, when the system routes a transferred call over a public network ISDN-PRI trunk group. If two or more outgoing trunks are connected through trunk-to-trunk transfer, the software can receive AOC information from the network for each outgoing trunk that is involved in the call.

Call Detail Recording (CDR) Adjuncts

The software does not tandem AOC information through a private network to other switches. The CDR adjunct that records AOC information must receive its input from software that is directly connected to the public network.

CDR Call Splitting

  • The system generates a separate call record, whenever the system transfers a call, if you administered CDR Call Splitting for outgoing trunks.

  • Attendant Call Recording, which is a form of Call Splitting, generates a CDR record when an attendant drops from a call.

  • Incoming Trunk Call Splitting has no effect on charge information.

  • If you rely on Call Splitting or Attendant Call Recording, request call charge information during the call. However, if you use AOC, a request for call charge information during a call increases message activity on the signaling channel, and reduces Busy Hour Call Capacity.

  • In some countries, or with specific protocols, AOC information is unavailable during a call. If AOC information in unavailable during a call, you can use the Elapsed Time in the CDR records to allocate the charges among the call participants.

  • You must use CDR Call Splitting if you want the charge display to restart at zero when a call is transferred.

Centralized Attendant Services

In any configuration where a branch system has no direct connection to the public network, the private network does not pass call-charge information to these branches.

Conference

If a user adds a third party to a call that is in charge-display mode, the display returns to normal. The system does not display call charges when more than two parties are on the call.

Distributed Communications System (DCS)

In any configuration where a branch system has no direct connection to the public network, the private network does not pass call-charge information to these branches.

Electronic Tandem Network (ETN)

In any configuration where a branch system has no direct connection to the public network, the private network does not pass call-charge information to these branches.

Hold

If a user places a call on hold, the display returns to normal mode. The user must press the disp-chrg button again to view call charges. If the automatic charge display is enabled, the user must wait for the system to refresh the display.

Last Number Dialed

When a user is active on a call, a user can view the last number that the user dialed. To view the last number that was dialed, the user presses the stored-numb button, and then presses the last-numb button. To view call charges again, the user must press the disp-chrg button, or the Normal button if Automatic Charge Display is part of the COR of the user.

QSIG

In any configuration where a branch system has no direct connection to the public network, the private network does not pass call charge information to these branches.

System resets

If you perform a warm reset while calls are active with charge display, the charge display stops operating. To resume call charge updates, users must press the Normal button.