S Registers
Page 235
ATS69 Command Line Time-outS Register 69 determines how long you have to type a command, after typing an ‘AT’,
expressed as seconds.
If the modem times-out before you complete a command, an ERROR message will be sent by
the modem.
The default value of 60 allows you 60 seconds between the time you have typed ‘AT’ and when
you press the ENTER key.
A value of 0 (zero) disables this feature.
Examples
ATS69=120 Allow 120 seconds to type a command to the modem before timing out.
ATS69=0 Never time-out a command
Default
60
Range
0-255