Abnormal Call Connection Due to Poor AT0 Ground

Publication Date:  2015-07-15 Views:  120 Downloads:  0
Issue Description
Noises occur in a call, the call is disconnected, or other unknown faults occur when the AT0 trunk of the SoftCo is used.
Handling Process
Step 1 Check the AT0 ground.

             For details, see AT0 Ground Check(Note:Download).

Step 2 Test the ground impedance.

             For details, see  AT0 Ground Impedance Test(Note:Download).

Step 3 If the fault persists, contact Huawei technical support engineers.

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Root Cause
The possible cause is that the AT0 ground is poor.

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