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20.5.99
Procedure in the case of malfunctions
Symptom
No display.
No dial tone.
No ringing tone.
With PBX operation:
No or incorrect connection
after dialing from memory.
The password entered is re-
jected.
kap02.fm5
Important information for installation and operation
Spain
Taiwan
Thailand
United Kingd.
Siemens Service should only be contacted if
problems develop with the device.
Your specialist dealer will be happy to answer
any questions concerning unit operation.
Contact your network operator for questions
concerning telephone connection.
The cause of an operating error need not necessarily lie
with the device. You may save time and money by rectify-
ing simple faults yourself. The following information
should be of help.
Cause
No power supply.
No power supply.
Handset cord not connected
correctly.
Loudspeaker volume off.
Trunk code not set.
Password entered incorrect-
ly.
Profiset 70isdn, GB: A30853-X300-B501-3-7619
900181540
27512152
29383610
990334411
Action
Check that the telephone connect-
ing cord has been inserted correct-
ly in the device and the NTBA.
Check the NTBA plug-in connec-
tion with the power network.
Check the plug-in connections of
the telephone connecting cord on
the device, the ISDN socket, and
the NTBA.
Check the plug-in connections of
the handset cord on the device and
on the handset.
Set the loudspeaker volume,
page 20.
Program the trunk code,
page 18.
Try again.
If you have forgotten your pass-
word, contact Siemens Service,
page 4.
5
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