Issue

The user experiences call cut offs.

Action

Check the system configuration in IP Office Manager to make sure that all trunk parameters are correct. Ensure the parameters match those provided by the central office/network provider.

Procedure

1. Ensure there are no alarms on the trunks. If alarms are present on the trunks, contact your service provider.
   

2. If no alarms are present, click Trace All to establish the reasons for the call cut off..

Performing a trace should enable you to view the reason why the calls are cutting off.

For example:

In the following screen, the call was set up on Line 1, Channel 1 and the direction was to the switch (originating party):

In the following screen, the disconnect direction is to the switch (Cause Code 16 - call was cleared from the originator):

If another cause code is shown, it indicates that there is an error condition on the line.