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BT Versatility
Installation and Maintenance Manual
53
Troubleshooting
All faults can normally be traced quite readily to a particular PCB. Prior to replacing any PCB, fault
conditions should be checked to see if they are caused by programming or mis-operation. The
Featurephone display will often indicate which system features have been set.
• System not initialising
Check that all system cards have been properly installed, with all connectors fully located.
• No incoming calls
Check that all phones programmed to ring are not programmed for DND or divert.
• Extension outgoing locked
If you cannot get outgoing access on a 2-wire telephone, move a Featurephone to the extension. If it
shows EXTN LOCK, the extension has been locked and you will need the unlock code to unlock it.
• No extension dial tone
Check that the extension has not been disconnected through programming.
• Not seizing a line for outgoing calls
• Check if the line has been programmed for incoming calls only.
• Check if the line is equipped in programming.
• Check that the key is programmed for line access.
• Door intercom not operating
Check the programming for the door intercom.
• Phone reset
Remember the simple phone reset code 739, which can be dialled from any extension phone.
• System reset
Reset: To do a warm reset of the BT Versatility press the reset button on the CCU MDF. You may also
choose programming mode and choose system, reset options, and reset.
Reset to default: To do a cold reset of the BT Versatility, enter programming mode and choose system,
reset options, and reset to default.
This will reset ALL programming to factory default.