User`s manual

AT Command Reference Manual
1048 4-11
S23 - General Bit Mapped Options Status
Indicates the status of command options.
Default: 62 (3Dh) (00111110b)
Bit 0 Grant RDL
0 = RDL not allowed (&T5) (Default.)
1 = RDL allowed (&T4)
Bits 1-3 DTE Rate
0 = 0 - 300 bps
1 = 600 bps
2 = 1200 bps
3 = 2400 bps
4 = 4800 bps
5 = 9600 bps
6 = 19200 bps
7 = 38400 bps or higher (Default.)
Bits 4-5 Assumed DTE parity
0 = even
1 = not used
2 = odd
3 = none (Default.)
Bits 6-7 Guard tone (&Gn)
0 = None (&G0) (Default.)
1 = None (&G1)
2 = 1800 Hz (&G2)
S24 - Sleep Inactivity Timer
Sets the length of time, in seconds, that the modem will operate in normal mode with no detected telephone line or DTE line
activity before entering low-power sleep mode. The timer is reset upon any DTE line or telephone line activity. If the S24
value is zero, neither DTE line nor telephone inactivity will cause the modem to enter the sleep mode.
Range: 0-255 seconds
Default: 0
S25 - Delay To DTR
Sets the length of time that the modem will ignore DTR for taking the action specified by &Dn. Its units are seconds for
synchronous modes and one hundredths of a second for other modes.
Range: 0-255 (1 second for synchronous modes 1; 0.01 second otherwise)
Default: 5
S26 - RTS to CTS Delay
Sets the time delay, in hundredths of a second, before the modem turns CTS ON after detecting an OFF-to-ON transition on
RTS when &R0 is commanded. Pertains to synchronous operation only.
Range: 0-255 hundredths of a second
Default: 1