# Advice of Charge

## Description

The Advice of Charge (AOC) feature (Europe only) displays the cost of a toll call on the caller's phone display. When this feature is enabled, the charge for the call replaces the call duration on the display. AOC provides call charges on all display phones and IP consoles.

AOC calculates the call charge using meter pulses sent from the Central Office (CO). When a caller makes a toll call, the CO establishes the call and sends meter pulses back to MiVoice Business. MiVoice Business calculates the cost of the call and displays that cost on the caller's telephone display. As meter pulses come in, MiVoice Business recalculates the charge and updates the display with the cumulative cost. If the call is transferred to a third party, MiVoice Business displays call charge information on the third party's phone.

Advice of Charge is calculated as follows:

AOC = (meter pulses x multiplier / 1000) + (surcharge / 10)

where:

- meter pulses is the total number of meter pulses received from the CO

- multiplier is a configurable value from 0 to 2000 representing thousandths of the local currency

- surcharge is a configurable value from 0 to 9999 representing tenths of the local currency

The AOC feature supports both:

- AOC-D (Duration)— call charge is displayed and updated during the call

- AOC-E (End)— call charge is displayed at the end of the call. If the caller hangs up first, the final meter pulse is not processed and the final call charge is not displayed.

MiVoice Business can be programmed to log meter pulses in the Station Message Detail Records (SMDR). For AOC-D, accumulated meter pulses are logged whenever a caller ends or transfers a call. For AOC-E, all meter pulses are logged to the final party at the end of the call.

AOC is available on BRI and PRI trunks programmed:

- On a Dual T1/E1 Framer MMC module

- On a Quad BRI Framer MMC module

## Conditions and Feature Interactions

Advice of Charge is:

- Only supported on the Euro-ISDN ( Euro-Standard variant) and Euro-BRI protocols

- Only supported on the following AOC variants: ETSI, Italy, Holland, Spain, or France.

The ETSI variant supports AOC-D and AOC-E. The Holland, Spain, and Italy variants conform to CO operation in those countries.

- Not available for network-side interfaces

- Not available on a per-call basis (AOC is available at subscription time only)

- Not available for conference calls

- Not supported on 5560 IPTs

- Supported on the 6905 and 6910 IP Phones.

## Programming

Before programming AOC, ensure the carrier providing ISDN services is delivering meter pulses for all applicable ISDN links.

To program a PRI trunk for AOC (Dual T1/E1 Framer):

- Program Embedded PRI Trunks

- Select "ISDN Node" in the Integrated Digital Access field in the Digital Link Descriptors form.

2. Complete the Advice of Charge form.

To program a BRI trunk for AOC (Quad BRI Framer):

- Program Embedded BRI Trunks

- Select "BRI Node" in the Integrated Digital Access field in the Digital Link Descriptors form.

2. Complete the Advice of Charge form.

To program AOC:

- System Options form

- Set the following parameters:

- - Advice of Charge – Enabled: Range is {YES, NO}

  - Advice of Charge – Surcharge: Range is 0 .. 9999 in 1/10's of currency

  - Advice of Charge – Multiplier: Range is 0 .. 2000 in 1/1000's of currency

To log meter pulses in SMDR (optional):

1. Class of Service Options form

- Ensure SMDR External is enabled for both the trunk and the calling device.

2. SMDR Options form

3. Enable Report Meter Pulses.

## Device Support

Not applicable

## Operation

None

Related Topics

- Station Message Detail Recording