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3.S-REGISTERS
The S-Registers are summarized in the table below along with their default values; registers may be
stored in one of the two user profiles by entering the &Wn command.
Register designations can be easily changed by modifying the modem sources.
The appropriate AT command which controls the relevant bits in the S-Register should be used to change
the value.
3.1.DEFAULT VALUES
The "factory" default values are coded into the modem tables and set into the active configuration at
initialization or by the ATZn command. The designated default profile is subsequently loaded, and may
change some of the factory default values. The designated default profile can be changed by entering the
&Yn command where n is one of the two possible user profiles.
The default values may be loaded at any time by entering the &Fn command.
Register
S0
S1
S2
S3
S4
S5
S6
S7
S8
S11
S12
S36
S37
S38
S83
3.2.
S-REGISTER DEFINITIONS
S0 - Number of Rings to Auto-Answer
Sets the number of the rings required before the modem automatically answers a call. Setting this
register to zero disables auto-answer mode.
Range:
Default:
S1 - Ring Counter
S1 is incremented each time the modem detects a ring signal on the telephone line. S1 is cleared if
no rings occur over an eight second interval.
Range:
Default:
48
Table 4-1. S-Register Summary
Function
Rings to Auto-Answer
Ring Counter
Escape Character
Carriage Return Character
Line Feed Character
Backspace Character
Wait Time for Dial Tone
Wait Time for Carrier
Pause Time for Dial Delay Modifier
DTMF Tone Duration
Escape Guard Time
LAPM Failure Control
Line Connection Speed
Delay Before Forced Hangup
LAPM Detection Timeout
0-255 rings
0
0-255 rings
0
Range
Units
0-255
rings
0-255
rings
0-255
-
0-127
-
0-127
-
0-255
-
2-255
s
1-255
s
0-255
s
50-255
ms
0-255
0.02 s
0-7
-
0-18
-
0-255
s
1-30
s
Default
0
0
43 (+)
13 CR
10 LF
8 BS
2
50
2
95
50
7
0
1
10
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