Filter
Top Products
3 AT Commands, Result Codes, and S-Registers
MT5634ZPX-PCI 45
S-Registers
S-registers generally affect how the AT commands perform. You can
read or alter the contents of an S-register by using the S command (see
AT Commands).
Register Unit Range Default Description
S0 rings 0, 1255 0 Sets the number of rings before the
modem answers. ATS0=0 disables
auto-answer completely.
S1 rings 0255 0 Counts the number of rings that have
occurred.
S2 decimal 0127 43 (+) Sets ASCII code for the escape
128255 character. Values greater than 127
disable the escape sequence.
S3 decimal 0127 13 (^M) Sets ASCII code for the carriage
return character.
S4 decimal 0127 10 (^J) Sets ASCII code for the line feed
character.
S5 decimal 032 8 (^H) Sets ASCII code for the backspace
33127 character. Values greater than 32
disable the backspace character.
S6 seconds 265* 2* Sets the time the modem waits after it
goes off-hook before it begins to dial
the telephone number.
S7 seconds 1255* 50* 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.
S8 seconds 065 2 Sets the length of a pause caused by a
comma character in a dialing com-
mand.
S10 100 ms 1254 20 Sets how long a carrier signal must be
lost before the modem disconnects.
Note: These values may be different outside North America.