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Fujitsu SRS -1050 (
Starting Over
If for any reason you become confused while setting up a local feature in
menu mode, you can always press REG, softkey number 4, to return to the
setup menus and start over.
Phone Operation
The following two features of ISDN phones may be different from what
you are used to:
Dialing 9. When you dial for an outside line (usually by pressing 9), you
do not hear a pause and a second dial tone. You can begin dialing the
telephone number immediately.
Onhook dialing. You can dial a number before you get a dial tone. The
number you dial appears on the display and remains there for three
minutes. When you lift the handset and press an idle Call Appearance
button, or press the SPEAKER button for handsfree mode, the phone
initiates the call automatically.
ISDN CONCEPTS: INTEGRATED VOICE AND DATA
ISDN stands for Integrated Services Digital Network, which provides
many voice and communication features. (The SRS-1050 data features,
available with the optional data terminal adapter, are described in Chapter
4, "Data Operation".)
The basic ISDN service provides two 64,000 bits per second "B" channels
for voice or data communications. Each B-channel can support circuit-
switched or packet-switched data services. There is also one "D"
channel, at 16,000 bits per second, for network signaling and packet-
switched data service. The combination is often referred to as "2B+D", or
the Basic Rate Interface (BRI).
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