Fujitsu SRS-1050 Manuale Utente

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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 p ause 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 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).