Multi-Tech Systems MT5600DSVD - Manual (Page 30)

MultiModemDSVD User Guide 4 AT Commands, S-Registers, and Result Codes
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; Return to command mode after dialing. (Place at end of dial
string.)
! Hook flash. Causes the modem to go on-hook for the time
specified in S29, then off-hook again .
@ 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 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. If the tone is not detected
within the time specified by S7 (US models), the modem
aborts the rest of the sequence and hangs up. The character
should follow the phone number and precede the user’s call
card number, e.g., ATDT1028806127853500&123456789.
Command: DS= y Dial Stored Telephone Number
Values: n = 0–3
Default: none
Description: Dial a number previously stored in directory number y by the
&Zy=x
command. Example: ATDS=3.
Command: E n Echo Command Mode Characters
Values: n = 0 or 1
Default: 1
Description: E0 Do not echo keyboard input to the terminal.
E1 Do echo keyboard input to the terminal.
Command: H n Hook Control
Values: n = 0 or 1
Default: 0
Description: H0 Go on-hook (hang up) and terminate any &T test that is in
progress.
H1 Go off-hook (make the phone line busy) and enter command mode.
Command: I n Information Request
Values: n = 0–6
Default: None
Description: I0 Display the product code. Example: MT5600DSVD.
I1 Calculate the ROM checksum and display the least significant
byte in decimal format.
I2 Calculate the ROM checksum and compare it to the prestored
checksum, displaying OK if they match, or ERROR if they do not.
I3 Display the controller firmware version (F), the basic model (V90),
the application code (A), and the interface type code (I) in the for-
mat VF.FFF-V90_AI. The application codes are D for desktop and
L for low power (PCMCIA). The interface codes are S for serial
and P for parallel. Example: V2.210-V90_DS
I4 Display the OEM-defined identifier string in either binary or
ASCII format.
I5 Display the country code. Example: 022.
I6 Display the modem data pump model and internal code version.
Example: RCV56DPF-PLL L8571A Rev 29.00/29.00.