# Running Individual or Batch Distortion/Echo Tests

This test takes approximately 15 minutes to complete on each trunk. While the test is running on a trunk, the system takes the trunk out of service.

CAUTION: Only run this test at the request of Mitel Technical Support. System performance could be degraded while the test is running.

NOTE: Only run these tests after business hours during periods of low call traffic.

To run the tests:

1. Ensure that you have configured the system to support testing. See

2. Configure System for Testing using Central Office Numbers

3. Configure System for Testing_using_Loopback

2. Access the Line Quality Measurement form.

3. Click Run Test.

4. Select the Test Type. To test a single trunk select Individual Distortion/Echo then select the PLID of the trunk. To run the test on all the eligible LS trunks in the system, select Batch Distortion/Echo. The PLID field is disabled.

5. Click Run.

3. If the test is successful, the test results are saved in the "/db/database/LSMeasure" directory. If the test fails, an error message is displayed. See Error Messages.

4. Run a System Diagnostic Report to automatically collect all the echo/distortion files. Then, send the System Diagnostic Report files to Mitel Technical Support for analysis. See System Diagnostic Reporting for instructions.

Related Topics

- Measuring LS Trunk Line Settings

- Individual or Batch Line Quality Test

- Line Quality Measurement

- Error Messages