Troubleshooting - TIPTEL 85 System S0 User Manual

Using the following table try to define the cause of a problem and resolve the error.

Troubleshooting

Problem
No display
Display too weak or dark
No sound
Noise or other
interference in speakers
Incorrect or no connection
when dialling from
telephone system
Call forwarding cannot be
activated.
No call number displayed
when a call is received.
The telephone can be reset by pressing the "Microphone mute" + number key 5
rd
and the 3 selection key from the top at the same time (re-start).
Troubleshooting
Possible cause
No connection with the
ISDN line
Contrast set incorrectly
Volume set to zero
Interference from wireless
telephone, monitor etc.
Exchange access code
has not been entered
Call forwarding settings
are missing or incorrect.
Network operator or
telephone system does
not support the function
or function is not
authorised.
Your network operator
does not support the
function or the function is
not switched on.
The caller has suppressed
the sending of the
number.
110
Remedy/
Recommendation
Check all cables and
plugs. Test other
telephone sockets.
Set contrast
Adjust volume
Change installation
location
Enter exchange access
code
Verify or test and modify
configuration. Ask your
network operator, whether
or not the function is
possible or has to be
switched on.
Ask your network
operator, whether or not
the function is possible or
has to be switched on.