Polycom 4020 Telephone User Manual


 
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12. Information
12.1 Error tree
Problem Check
The telephone freezes Remove and replace the battery pack. Press to turn on the telephone
The telephone does not ring Check whether the ringer is SILENT or RINGER VOL. is OFF
The telephone cannot find a system ID at Check whether the system is set to allow subscriptions
“SUBSCRIPTION CREATE”
The telephone cannot subscribe even if Check if Access Code is necessary
system ID has been found
Not possible to turn on the telephone Check if battery is connected. If yes, charge the battery
The telephone turn off when recieving a call Charge the battery. If still a problem change the battery as it might
and going off-hook be defective
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