S-Registers - Multitech MULTIMODEM MT5634ZBA-USB User Manual

MT5634ZBA-USB User Guide

S-Registers

Certain modem values, or parameters, are stored in memory locations called S-registers.
Use the S command to read or to alter the contents of S-registers (see previous section).
Register
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S28
S30
S35
S36
32
Unit Range Default
1 ring 0, 1–255 1
1 ring 0–255 0
decimal 0–127 43 (+)
128–255
decimal 0–127 13 (^M)
decimal 0–127 10 (^J)
decimal 0–32 8 (^H)
33–127
seconds 2–65* 2*
seconds 1–255* 50*
seconds 0–65 2
decimal 0, 1–127 37 (%)
100 ms 1–254 20
1 ms 50–150* 95*
decimal 0, 1–255 1
1 minute 0, 1–255 0
decimal 0–1 0
decimal 0–7 7
Description
Sets the number of rings until the modem
answers. ATS0=0 disables autoanswer completely.
Counts the rings that have occurred.
Sets ASCII code for the escape sequence
character. Values greater than 127 disable
escape.
Sets the ASCII code for the carriage return
character.
Sets the ASCII code for the line feed
character.
Sets the ASCII code for the backspace
character. Values greater than 32 disable
backspace.
Sets the time the modem waits after it goes
off-hook before it begins to dial the telephone
number.
Sets the time the modem waits for a carrier
signal before aborting a call. Also sets the wait
for silence time for the @ dial modifier.
Sets the length of a pause caused by a
comma character in a dialing command.
Sets ASCII code for remote configuration
escape character. S9=0 disables remote
configuration.
Sets how long a carrier signal must be lost
before the modem disconnects.
Sets spacing and duration of dialing tones.
0 disables, 1–255 enables V.34 modulation.
Sets the length of time that the modem waits
before disconnecting when no data is sent or
received. A value of zero disables the timer.
See also the \T command.
0 disables, 1 enables the V.25 data calling
tone, which allows remote data/fax/voice
discrimination.
Specifies the action to take in the event of a
negotiation failure when error control is
selected. (See S48.)