Chapter 6 - S-Registers; S-Registers - Multitech MT5600BA-V92 At Commands Reference Manual

Chapter 6 – S-Registers
Certain modem values, or parameters, are stored in memory locations called S-Rregisters. Use the S command to
read or alter the contents of the S-Registers.

S-Registers

S-Reg Unit Range
S0 1 ring 0,1–255
S1 1 ring 0–255
S2 decimal 0–127
S3 decimal 0–127
S4 decimal 0–127
S5 decimal 0–32
S6 seconds 2–255
S7 seconds 1–255
S8 seconds 0–255
S9 100 ms 1–255
S10 100 ms 1–255
S11 1 ms 50–255
S12 20 ms 0–255
S13 decimal 0, 1–127
S15 minutes 0, 10–255 30
S17 minutes 0–255
S24 seconds 0–255
S25 10 ms (async) 0–255 5
S26 10 ms 0–255
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F)
Default Description
country dep. Number of Rings to Auto-Answer:
modem automatically answers a call. ATS0=0 disables autoanswer completely.
0 Ring Counter:
43 (+) Escape Character:
character. Values greater than 127 disable escape.
13 (^M) Carriage Return Character:
10 (^J) Line Feed Character:
8 (^H) Backspace Character:
character. Values greater than 32 disable backspace.
country dep. Wait Time Before Blind Dialing or for Dial Tone:
waits after it goes off-hook before it begins to dial the phone number.
country dep. Wait Time for Carrier, Silence, or Dial Tone:
carrier signal before aborting a call. Sets the wait for silence time for the @ dial
modifier. Sets the time the modem waits for a dial tone after encountering W in the
dial string.
2 Pause Time for Dial Delay:
character in a dialing command.
6 Carrier Detect Response Time:
carrier must be present before the modem considers it valid.
14 Lost Carrier to Hang Up Delay:
the modem disconnects.
country dep. DTMF Tone Duration:
50 Escape Prompt Delay (EPD):
allowed between receipt of the last character of the three escape character
sequences from the computer and the sending of the OK result code to the
computer (escape code guard time).
42 (*) Remote Configuration Escape Character:
configuration escape character. ATS13=0&W disables remote configuration. For
use with the MT5600BA and MT5600BR only.
Dialup Backup:
connection before it checks for a restored lease line. Zero disables dial backup. For
use with the MT5600BA and MT5600BR only.
1 Dialup Connection:
before it attempts a dial-up connection. For use with the MT5600BA and
MT5600BR only.
0 Sleep Inactivity Timer:
normal mode with no detected telephone or serial port activity before it enters low-
power sleep mode. The timer is reset upon any serial port or telephone line activity.
Delay to DTR OFF:
(sync) ignores DTR while taking the action specified by &D .
1 RTS to CTS Delay:
OFF-to-ON transition on RTS before the modem turns CTSON. Applies to
synchronous operation only.
Sets the number of rings required before the
Counts the rings that have occurred.
Sets ASCII code for the escape sequence128–255
Sets the ASCII code for the carriage return character.
Sets the ASCII code for the line feed character.
Sets the ASCII code for the backspace33–127
Sets the length of the pause caused by a comma
Sets the time, in tenths of a second that the
Sets how long a carrier signal must be lost before
Sets spacing and duration of dialing tones.
Defines the maximum period, in fiftieths of second,
Sets the ASCII code for the remote
Sets the length of time the modem waits after making a dial-up
Sets the length of time the modem waits after a lease line fails
Sets the number of seconds that the modem operates in
Sets the length of time that the modem1 ms
When &R0 is commanded, sets the time after detecting an
Chapter 6 – S-Registers
Sets the time the modem
Sets the time the modem waits for a
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