S3 - Line Termination Character; S4 - Response Formatting Character; S5 - Command Line Editing Character; S6 - Wait Time For Dial Tone Before Blind Dialing, Or After "W" Dial Modifier - Conexant H08-15355F Reference Manual

3.3.3.4 S3 - Line Termination Character

S3 sets the decimal value of the command line and result code terminator character. Pertains to asynchronous operation
only.
Range: 0-127, ASCII decimal
Default: 13 (Carriage Return)

3.3.3.5 S4 - Response Formatting Character

S4 sets the decimal value of the character generated by the modem as part of the header, trailer, and terminator for result
codes and information text, along with the S3 parameter (see the description of the V parameter for usage). If the value of S4
is changed in a command line, the result code issued in response to that command line will use the new value of S4.
The Response Formatting character is output after the Line Termination character if verbose result codes are used.
Range: 0-127, ASCII decimal
Default: 10 (Line Feed)

3.3.3.6 S5 - Command Line Editing Character

S5 s sets the decimal value of the character recognized by the modem as a request to delete from the command line the
immediately preceding character. The modem will not recognize the Command Line Editing character if it is set to a value that
is greater than 32 ASCII. This character can be used to edit a command line. When the echo command is enabled, the
modem echoes back to the local DTE the Command Line Editing character, an ASCII space character and a second
Command Line Editing character; this means a total of three characters are transmitted each time the modem processes the
Command Line Editing character.
Range: 0-32, ASCII decimal
Default: 8 (Backspace)

3.3.3.7 S6 - Wait Time for Dial Tone Before Blind Dialing, or After "W" Dial Modifier

S6 sets one of two possible parameters:
1. Sets the length of time, in seconds, that the modem will wait before starting to dial after going off-hook when blind
dialing.
2. If enabled by country options in the INF file, S6 sets the length of time, in seconds, that the modem will wait for dial tone
when encountering a "W" dial modifier before returning NO DIAL TONE result code.
The modem always pauses for a minimum of 2 seconds, even if the value of S6 is less than 2 seconds.
Range: 2-255 seconds
Default: 2
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