Filter
Top Products
52
SERIES II INTELLIGENT DATA/FAX MODEMS
5.4 Dialing Commands
5.4.1 Dialing Action Commands
Dial Command D
The letter D in a command causes the Series II Modem to dial the
telephone number immediately following it. For example, if you enter
ATD5551212 and hit RETURN, the Modem dials the number 555-1212.
The D command is also used in conjunction with a telephone set for
manual dialing. You dial the number on your telephone set, and after
hearing the answer tone on your handset, you type ATD on your
keyboard and hit RETURN. Then hang up the headset. Unless you have
a specific need to dial in this manner, we recommend you use the first
method, where the telephone number is entered on your keyboard.
The Series II Modem gives you several choices of dialing methods. You
can use tone or pulse dialing, by inserting a letter T or a P in the
command string. (See the section on Dial Modifiers.)
You can also configure the modem to either wait for and detect dial
tones and busy signals (which we call “Wait-for-Dial-Tone” dialing or
“Smart” dialing), or work with timed pauses without dial tone and
busy signal detection (which we call “Blind” dialing; see Section on “
X” Command.)
Note: There is another method of dialing, called “DTR Dialing”, where
by manipulating the DTR signal on pin 20 of the RS-232C/V.24
interface, a number stored in the modem's memory is automatically
dialed. See the section on the DTR Dialing ($D) command for details.
Continuous Redial A: or :
If you select the Wait-For-Dial-Tone method of dialing (see X3 or X4
command), you can command the Series II Modem to continuously
redial a busy number until your call is answered. This is done with the
A: command.