13 ATV Result code type
ATV0 for digit code,
ATV1 for text code (default)
0=OK
1=connect
2=ring
3=No carrier
4=error
14 ATZ Reset (disconnect, enter command mode and
restore the flash settings)
15 AT&C Serial port DCD control
AT&C0=DCD always on
AT&C1=DTE detects connection by DCD on/off
(default)
16 AT&F Restore manufacturer’s settings
17 AT&G Select guard time reply “OK” only
18 AT&R Serial port RTS option command reply “OK” only
19 AT&S Serial port DSR control reply “OK” only
20 AT&V View settings
21 AT&W Write current settings to flash for next boot up
S Registers
No. S Register Description & default value Remarks
1 S0 Ring to auto-answer (default=0)
2 S1 Ring counter (always=0) no action applied
3 S2 Escape code character (default=43 ASCII “+”)
4 S3 Return character (default=13 ASCII)
5 S4 Line feed character (default=10 ASCII)
6 S5 Backspace character (default= 8 ASCII)
7 S6 Wait time for dial tone (always=2, unit=sec) no action applied
8 S7 Wait time for carrier (default=3, unit=sec)
9 S8 Pause time for dial delay (always=2, unit=sec) no action applied
10 S9 Carrier detect response time
(always=6, unit 1/10 sec)
no action applied
11 S10 Delay for hang up after carrier
no action applied
12 S11 DTMF duration and spacing
(always=100 ms)
no action applied
13 S12 Escape code guard time
(default=50, unit 1/50 sec)
to control the idle time for “+++”
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