Lucent Technologies Host-Based Controller Modem AT User Manual
Page 7
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Command Reference (continued)
Version 1.0
Lucent Technologies Inc.
7
Dn
Dial
This command instructs the modem to begin the dialing sequence. The dial string (n, including modifiers and the
telephone number) is entered after the ATD command.
A dial string can be up to 60 characters long. Any digit or symbol (0
9, *, #, A, B, C, D) may be dialed as touch-
tone digits. Characters such as spaces, hyphens, and parentheses do not count
they are ignored by the
modem and may be included in the dial string to enhance readability.
The following may be used as dial string modifiers:
L
Redials last number. Should be the first character following ATD, ignored otherwise.
P
Pulse dialing.
T
Touch-tone dialing (default).
,
Pause during dialing. Pause for time specified in Register S8 before processing the next
character
in the dial string.
W
Wait for dial tone. Modem waits for a second dial tone before processing the dial string.
V
The modem switches to speakerphone mode and dials the number. An ATH command may be
used to
disconnect the voice call.
@
Wait for quiet answer. Wait for five seconds of silence after dialing the number. If silence is not
detected, the modem sends a NO ANSWER result code back to the user.
!
Hook flash. Causes the modem to go on-hook for 0.5 seconds and then return to off-hook.
;
Return to command mode. Causes the modem to return to command mode after dialing the
number,
without disconnecting the call.
^
Disable data calling tone transmission.
S=n Dial a telephone number previously stored using the &Zn=x command (see the &Zn=x command for
further information). The range of n is 0—3.
$
Bong tone detection
En
Echo Command
This command controls whether or not the characters entered from your computer keyboard are echoed back to
your monitor while the modem is in command mode.
E0:
Disables echo to the computer
.
E1:
Enables echo to the computer (default).
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
Fn
Online Data Character Echo Command
This command determines if the modem will echo data from the DTE. This modem does not support the F0
version of the command. However, the modem will accept F1, which may be issued by older communication
software, to assure backward compatibility.
F0:
Online data character echo enabled (NOT SUPPORTED).
F1:
Online character echo disabled.
Result Codes: