# SIP Link Alarm

## System/Sub-System

MiVoice Business: Software

## Description

This alarm indicates that the SIP link is not available.

## Alarm Status

Minor: 10.

Major: 50.

Critical: 100.

#### Possible Cause | #### Corrective Action
--- | ---
Network communications failure | Check your network connectivity between MiVoice Business and the IP address provided by your SIP service provider.
SIP link failed to register | Check your System Diagnostics logs to determine when the link went down. Check your audit logs for any SIP trunk configuration changes. If a change has been made, return to original configuration.
Maintenance is being performed on the SIP links, causing the link to go down. The SIP link may have been brought down intentionally. | Check your audit logs for any service maintenance commands. For example: Check if the SIP link status, issue SIP LINK STATUS or SIP LINK STATE PEER <PEER_Name> Check if the SIP link was forced busy by the following maintenance commands: SIP BUSY FORCE PEER < PEER_NAME> SIP BUSY PEER <PEER_NAME> Enter the following command to bring the SIP link in service: SIP RTS PEER <PEER_Name>) launched If the alarm is not resolved: Contact your SIP service provider to determine changes that may have been made to your SIP service. Collect required System Diagnostics and contact Mitel Product Support.