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SERIES II INTELLIGENT DATA/FAX MODEMS
6. S-Registers
6.1 Introduction
Certain Command Mode configurations are stored in memory registers
called, S-Registers. The S command is used to assign a value to, and to
read the current value of an S-Register. To assign a value to an S-
Register, enter the letter S, followed by the S-Register number and an
equals sign (=), and then a decimal response to the message “ENTER
THE NEW VALUE IN DECIMAL FORMAT”. To read an S-Register value,
enter the letter S followed by the S-Register number and a question
mark (?), then hit RETURN. To verify that the S-Register value was
entered correctly, enter for example, ATS8? and hit RETURN. You
should receive a response of the assigned value given to that S-Register.
Refer to Section 6.2, Reading and Assigning S-Register Values.
S0
Number of Rings Until Modem Answers
Unit: Rings
Range: 0-255
Default: 1
Description: S0 defines the number of rings the modem waits
before answering an incoming call. The default
value is one ring (Decimal 1), which means that
the modem answers the call immediately after
the first ring. The maximum number of rings
that can be configured is 255. Setting the value
to zero (0) disables auto-answer completely.
S1
Rings Which Have Occurred
Unit: Rings
Range: 0-255
Default: 0
Description: S1 counts the number of rings that have
occurred. It is a “read” type of register and is
seldom, if ever, used in typical operation. Each