S-Register 1—Ring Count

Stored in Nonvolatile Memory?:

No

Status-Only?:

Yes

Default Setting:

0

Range:

0 to 255

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 1’s value equals S-Register 0’s 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

Stored in Nonvolatile Memory?:

Yes

Status-Only?:

No

Default Setting:

43

Range:

0 to 255

This S-Register determines the decimal value of the escape code character.

The default setting, 43, translates to the ASCII “+” character. Values greater than 127 disable the escape function.

S-Register 3—Carriage Return Character

Stored in Nonvolatile Memory?:

No

Status-Only?:

No

Default Setting:

13

Range:

0 to 127

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

Stored in Nonvolatile Memory?:

No

Status-Only?:

No

Default Setting:

10

Range:

0 to 127

This S-Register determines the decimal value of the line feed character. The default setting, 10, translates to the ASCII <LF> (line feed) character.

Using the

AT ACU

Using the AT Automatic Calling Interface 5-11

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Motorola V.34-SDC, 326X V.34 Register 1-Ring Count, Register 2-Escape Code Character, Register 3-Carriage Return Character