# Receivers Alarm

## System/Sub-System

MiVoice Business: Hardware

## Description

An active DTMF receiver circuit on the active Peripheral Switch Matrix card has a fault. By default all MiVoice Business systems are assigned three DTMF receivers, each having 16 circuits for a total of 48 circuits.

Maintenance commands are valid for this alarm.

## Alarm Status

The minor threshold is > 0. The major threshold is 25. The critical threshold is 100.

#### Possible Cause | #### Corrective Action
--- | ---
An active DTMF receiver circuit on the active Peripheral Switch Matrix card has a fault. | Replace Peripheral Switch Controller.