CHAPTER 2: AT Commands
5
Description (continued):
!
Hook flash. Causes the modem to go quickly on-hook
then back off-hook.
@
Wait for silence. Causes the modem to wait for 5 seconds of
silence before processing the next part of the command. If
silence is not detected within the time set in S-Register S7,
the modem returns a NO ANSWER or BUSY code.
^
Toggle data calling tone on or off. Applies only to current
dialing attempt.
&
Detect credit card “bong” tone. The character should follow
the phone number and precede the user’s calling card number
(for example, ATDT1028806127853500&123456789).
Command:
DS=
n
Dial Stored Telephone Number
Values:
n
= 0–3
Default:
None
Description:
Dials a number previously stored in directory number
n
by the &Z
n
=
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:
H
n
Hook Control
Values:
n
= 0 or 1
Default:
0
Description:
H0
Goes on-hook (hang up) and terminates any &T test in
progress.
H1
Goes off-hook (makes the phone line busy); enters command
mode.
Command:
I
n
Information Request
Values:
n
= 0–6
Default:
None
Description:
I0
Displays the product code. For example, MD1650A-JP.
I1
Calculates ROM checksum; displays the least significant byte in
decimal format.
I2
Calculates ROM checksum and compares it to the prestored
checksum, displays OK if they match or ERROR if they don’t
match.
I3
Displays the firmware version and application codes.
I4
Displays the OEM-defined identifier string in either binary or
ASCII format.
I5
Displays the regional or country code. For example, 098.
I6
Displays the modem data pump model and internal code
version.
Command:
L
Not applicable.
Содержание MD1650A-JP
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