Multi-Tech Systems MT5634ZPX - Manual (Page 37)

MT5634ZPX 37
3 AT Commands, Result Codes and S-Registers
Command: I n Information Request
Values: n = 0–4, 9, 11
Default: None
Description: I0 Display default speed and controller firmware version.
I1 Calculate and display ROM checksum (e.g., “12AB”).
I2 Check ROM and verify the checksum, displaying OK
or ERROR.
I3 Display default speed and controller firmware version.
I4 Display firmware version for data pump (e.g., “94”).
I9 Display country code (e.g., “NA Ver. 1”).
I11 Display Diagnostic Information for the last Modem
Connection (i.e., DSP and Firmware version, Link
Type, Line Speed, Serial Speed, Type of Error
Correction/Data Compression, Number of past
Retrains,etc.)
Command: L n Monitor Speaker Volume
Values: n = 0, 1, 2, or 3
Default: 2
Description: L0 Select low volume.
L1 Select low volume.
L2 Select medium volume.
L3 Select high volume.
Command: M n Monitor Speaker Mode
Values: n = 0, 1, 2, or 3
Default: 1
Description: M0 Speaker always off.
M1 Speaker on until carrier signal detected.
M2 Speaker always on when modem is off-hook.
M3 Speaker on until carrier is detected, except while
dialing.
Command: N n Modulation Handshake
Values: n = 0 or 1
Default: 1
Description: N0 Modem performs handshake only at communication
standard specified by S37 and the B command.
N1 Modem begins handshake at communication
standard specified by S37 and the
B command.
During handshake, fallback to a lower speed can
occur.