IBM Aptiva Handbook page 189

Table 15: S registers
Register Function
S0 Auto-answer ring
S1 Ring counter
S2 Escape code character
S3 Carriage return character
S4 Line feed character
S5 Backspace character
S6 Dial tone wait time
S7 Remote carrier wait time
S8 Comma pause time
S9 Carrier detect response time
S10 Carrier loss time
S11 Touch-tone dialing speed
S12 Escape character detect time
S13 Reserved (Do not use)
S14 Echo, response, dialing, originate/answer
S15 Reserved (Do not use)
S16 RDL, Clear-Down, Retrain Response
S17 Reserved (Do not use)
S18 Modem test timer
S19 Reserved (Do not use)
S20 Reserved (Do not use)
Range/units
0-255 /rings
0-255 /rings
0-127 /ASCII
0-127 /ASCII
0-127 /ASCII
0-32, 127 /ASCII
0-255 /seconds
1-255 /seconds
0-255 /seconds
0-255 /10ths of a second
0-255 /10ths of a second
50-255 /milliseconds
0-25 /50ths of a second
Bit-mapped register
Bit-mapped register
0-255 /seconds
Default
0
0
43
13
10
8
2
45
2
6
14
95
50
None
None
None
None
None
0
None
None
S registers 175