Filter
Top Products
4 AT Commands, S-Registers, & Result Codes
22
MultiModemZBA-V-V92 User Guide
part of command. If silence is not detected, the modem
returns a NO ANSWER code.
^ Disable data calling tone transmission.
$ Detect AT&T call card “bong” tone. The character should
follow the phone number and precede the user’s call card
number: ATDT1028806127853500
$123456789.
Command: DS=
n
Dial Stored Telephone Number
Values:
n
= 0, 1, 2
Default: none
Description: Dials a number previously stored in directory number
y
by the
&Zn=x
command. Example: ATDS=3.
Command: E
n
Echo Command Mode Characters
Values:
n
= 0 or 1
Default: 1
Description: E0 Does not echo keyboard input to the terminal.
E1 Does echo keyboard input to the terminal.
Command: F
n
Echo Online Data Characters
Values:
n =
0, 1
Default: 1
Description: F0 Enables online data character echo. (Not supported.)
F1 Disables online data character echo (included for backward
compatibility with some software).
Command: H
n
Hook Control
Values:
n
= 0 or 1
Default: 0
Description: H0 Goes on-hook (hangs up).
H1 Goes off-hook (makes the phone line busy).
Command: I
n
Information Request
Values:
n
= 0–5, 9, 11
Default: None
Description: I0 Displays default speed and controller firmware version.
I1 Calculates and displays ROM checksum (e.g.,
B399
).
I2 Checks ROM and verifies the checksum, displaying
OK
or
ER-
ROR
.
I3 Displays default speed and controller firmware version.
I4 Displays firmware version for data pump (e.g.,
17
).
I5 Displays the board ID: software version, hardware version, and
the country ID in hexadecimal format (e.g.,
s0503a01V, 0, 34
).
I9 Displays the country code in decimal format (e.g.,
52
).
I11 Displays diagnostic information for the last modem connection,
such as DSP and firmware version, link type, line speed, serial
speed, type of error correction/data compression, number of
past retrains, etc.