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4.4 Configuring ISDN Telephones at FRITZ!Box
Fon WLAN
FRITZ!Box Fon WLAN 7050 – 4 Making Calls with FRITZ!Box Fon WLAN 7050
Configuring ISDN Telephones at FRITZ!Box Fon WLAN
7.
Click the "Apply" button.
8.
If desired, set up the "Extension FON 2" and the "Exten-
sion FON 3" in the same manner.
Up to eight ISDN phones can be connected to FRITZ!Box Fon
WLAN. Connect the ISDN telephones to the ISDN S
"FON S
".
0
The following ISDN services are supported: voice, telephony,
audio 3.1 and Fax G2/G3.
Assigning Internet and Fixed-Line Numbers to
ISDN Telephones
If the connected ISDN telephones should only react to cer-
tain numbers, MSNs must be configured in the ISDN tele-
phones.
Proceed as follows to specify whether calls are conducted on
the fixed-line network or over the Internet:
No MSNs Are Configured in the ISDN Telephone
If no MSNs are configured in the ISDN telephone, the main
number is used for outgoing calls. The main phone number
is listed in the "Telephony / ISDN Terminal Devices" menu.
If the main number is a fixed line, all calls will be con-
ducted on the fixed-line network.
If the main number is an Internet number, all calls will
be conducted over the Internet.
MSNs Are Configured in the ISDN Telephone
If you specify an Internet number as the outgoing MSN
in the ISDN telephone, outgoing calls will be conducted
over the Internet.
Internet numbers can be set up in the ISDN phone just
like MSNs.
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