Yealink line Disabeling itself

[krishanm0866]

This may sound strange however I have come across at least 4 yealink phones where Line is "Disabled" by itself.

To get this fixed, all we need to do is login to Yealink and "Enable" line and "Confirm" settings.

Initially I didint pay much attention as I though this may be just someone being smart and disabling their line so that do not receive calls. However I have received similar reports from more then 3 customers.

I cant remember which yealink phones previous customers used.

I have managed to get logs and screenshots of this one.

T41p
Firmware Version 36.80.0.70
Hardware Version 36.0.0.0.0.0.0

I have attached screenshot and logs.

Any thought on why line "disables" by itself ?


EDIT : To add further, I have tried disabling phone myself couple of time and enabling before taking logs. I assume you will see that operation in logs. When customer sent us this phone, line was disabled.