Error code

Nokia switch All models code 644

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Meaning

Indicates an AAL1 or AAL2 endpoint is out of service because it is failing the connectivity test with the remote equipment. Faulted voice over packet facilities, e.g. LOS/LOF on ATM interface or Equipment problem at remote endpoint

Member details

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

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Possible causes

Go to TAP-106

Solution

Solution steps are available to members and are not shown on this page. Answer the questions to open the solution.

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