Deutsche Telekom Tiptel 274 1082688 Benutzerhandbuch
Produktcode
1082688
Appendix
70
Troubleshooting
Power failure
Emergency operation is possible during power failure. You can dial using the
dialling keys and make a call using the handset. Incoming calls are signalled by a
standard ringing tone with a fixed volume. The internal clock stops. But all settings
are retained so that the previous status is reset when power returns. You may need
to reset the time.
dialling keys and make a call using the handset. Incoming calls are signalled by a
standard ringing tone with a fixed volume. The internal clock stops. But all settings
are retained so that the previous status is reset when power returns. You may need
to reset the time.
Using the following table try to define the cause of a problem and resolve the error.
Problem
Possible cause
Remedy/Recommendation
No display.
No contact with mains power
supply.
supply.
Check all cables and plugs. If
necessary try another plug.
necessary try another plug.
Display too weak or dark.
Contrast set incorrectly.
Set contrast.
No sound.
Volume set to zero.
Adjust volume.
No dialling tone
No contact with connection
cable.
cable.
Check all cables and plugs.
No call signalling in PABX.
No call signal switched on.
Check PABX programming.
Buzzing or other interference in
the speaker or receiver.
the speaker or receiver.
Interference from cordless
telephone, cordless headset,
monitor etc.
telephone, cordless headset,
monitor etc.
Change installation location.
Incorrect or no connection
when dialling from PABX.
when dialling from PABX.
The prefix for the public
network has not been entered.
network has not been entered.
Enter prefix.
Call charges not displayed
Network operator or PABX
does not support the function
or function is not authorised.
You received the call, the call
is free.
does not support the function
or function is not authorised.
You received the call, the call
is free.
Check with network operator
or PABX as to whether
function is supported or needs
to be authorised.
or PABX as to whether
function is supported or needs
to be authorised.
No automatic call-back on
busy
busy
Call back code not entered,
network operator or PABX
does not support the function
or function is not authorised.
network operator or PABX
does not support the function
or function is not authorised.
Enter call back code.
Check with network operator
or PABX as to whether
function is supported or needs
to be authorised.
Check with network operator
or PABX as to whether
function is supported or needs
to be authorised.