Using the AT Automatic Calling Interface 5-11
Using the
AT AC U
S-Register 1—Ring Count
This S-Register counts the number of rings in an incoming telephone call. If the
modem is configured to answer (AT*AA, or Answer=S0), when S-Register 1s
value equals S-Register 0s value, the modem answers the call. If no ring is received
after a country-specific time (eight to 10 seconds), the counter is reset to 0.
S-Register 2—Escape Code Character
This S-Register determines the decimal value of the escape code character.
The default setting, 43, transla tes to the ASCII + character. Values greater than 127
disable the escape function.
S-Register 3—Carriage Return Character
This S-Register determines the decimal value of the carriage return character.
The default setting, 13, translates to the ASCII <CR> (carriage return) character.
S-Register 4—Line Feed Character
This S-Register determines the decimal value of the line feed character. The default
setting, 10, translates to the A SCII <LF> (line feed) character.
Stored in Nonvolatile Memory?: No
Status-Only?: Ye s
Default Setting: 0
Range: 0 to 255
Stored in Nonvolatile Memory?: Yes
Status-Only?: No
Default Setting: 43
Range: 0 to 255
Stored in Nonvolatile Memory?: No
Status-Only?: No
Default Setting: 13
Range: 0 to 127
Stored in Nonvolatile Memory?: No
Status-Only?: No
Default Setting: 10
Range: 0 to 127