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Windows PC Software
Prefix Number
•Under Length of Internal Telephone Numbers you indicate the length of
your internal telephone numbers. In this way the prefix number is dialled
automatically, if the length of the calling number exceeds the length of in-
ternal telephone numbers you indicated here.
If you do not want to use this function or if you use the system with a main
connection, please enter a 0 into the respective field.
Examples: Length of internal telephone numbers: 3
Entered calling number: 130
It is dialled: 130
Length of internal telephone numbers: 3
Entered calling number: 5271130
It is dialled: 0 5271130
•Under External Prefix Number you enter the external prefix number
which you must dial to get an outside line. In most cases it is 0.
• Some PABXs transmit the calling number with prefix number to the sys-
stem. If you want to transfer the displayed calling number without the pre-
fix number directly into the telephone book, you can enable the function
Skip prefix number on incoming call.
NOTE
The following settings are only necessary, if the system is operated with a
PABX.
TIP
To skip the automatic prefix number temporarily, you can place a „-“ in front
of the calling number (e.g. „-130“).
ATTENTION You must enter the external prefix number at any case if you operate the sy-
stem with a PABX since only in this case the system waits for a dial tone. Wi-
thout an external prefix number, the calling number is transmitted too fast
and the connection cannot be established.
ISDN
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