User's Manual Part 1

66 AT Commands
Revision 1.8 P/N 90023363
ATS0
Description: LISTEN MODE
This command sets the number of rings the modem will wait before it will
answer the incoming call. This command sets the modem’s S-register 0.
Syntax: ATS0[=<n>][?]
Parameters: =<n>, ?
<n> is a number between 1 and 255 that represents the number of rings
the modem will wait before answering the incoming call. This
command sets the S-register 0 to the number specified in <n>. If
this command is set to 0, the modem will never answer the incoming
call.
? will query the S-register and return the register’s current value
Response: If the user has typed the command ATS0?, the modem will return the
current value of the register and the string OK. For example:
5
OK
If the user has typed the command ATS0=<n>, the modem will only return
the string OK.
Example: ATS0=5<cr> answer after 5 rings
OK
ATS2
Description: ESCAPE CHARACTER SELECTION
The escape sequence consists of three repetitions of the escape code
character, defined by S-Register 2 (default value: decimal 43(+)). The
escape sequence causes the modem to go to the off-line command state
from the on-line data state. After this escape sequence, the modem can
accept user's AT Commands.
Syntax: ATS2=<n><cr>
Parameters: <n> is the decimal value of the ASCII character used as the “escape”
character
Response: OK
Example: ATS2=43<cr>
OK