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Analogue telephones
Analogue telephones must comply with the following specifications:
•
DTMF telephones (dual tone multiple frequency):
The dialling information is transmitted via a tone sequence. In addition to the
keys
-
a nd
Additionally the following feature should be supported by the analogue telephones in
order to ensure full capability of the telephone system:
•
CLIP function (calling line identification presentation):
Telephones able to display the phone number of the calling party.
Note: Pulse dialling telephones are NOT supported.
ISDN telephones
Telephones which can be operated at S
DSS1.
For operation of an ISDN telephone, the relevant internal phone number (MSN) is re-
quired. Please consult the User's Manual of the ISDN telephone for the programming
procedure.
First steps
, also the keys "*" and "#" are available.
-ports according to Euro ISDN standard
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