User`s guide

TECHNICAL REFERENCE
76
S-Registers
To change a setting, use the ATSr=n command, where r is the register and n is a decimal value from 0 − 255
(unless otherwise indicated).
Register Default Function
S0 0 Sets the number of rings on which to answer in Auto Answer Mode
When set to 0, Auto Answer is disabled
S1 0 Counts and stores the number of rings from an incoming call
S0 must be greater than 0
S2 43 Stores the ASCII decimal code for the escape code character
Default character is +
A value of 128 – 255 disables the escape code
S3 13 Stores the ASCII code for the Carriage Return character
Valid range is 0 – 127
S4 10 Stores the ASCII decimal code for the Line Feed character
Valid range is 0 – 127
S5 8 Stores the ASCII decimal code for the Backspace character
A value of 128−255 disables the Backspace key’s delete function
S6 2 Sets the number of seconds the modem waits before dialing
If Xn is set to X2 or X4, this is the time-out length if there is not a dial tone