US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Command Reference Manual page 93

Note: * Values presented in decimal except where noted.
Register
S0 Auto answer ring number.
S1 Ring counter.
S2 AT escape character (user defined).
S3 Carriage return character.
S4 Line feed character.
S5 Back space character.
S6 Time for dial tone.
S7 Wait time for carrier.
S8 Pause time for dial delay modifier.
S9 Reserved.
S10 Reserved.
S11 DTMF tone duration.
S12 Escape guard time.
S20 Sync underrun fill character.
S21 V.24/general bit-mapped options sta-
tus: DTR behavior, DCD behavior.
S29 Flash dial modifier time.
S30 Inactivity timer.
S35 Reserved.
S36 LAPM failure control.
S37 Line connection speed.
S42 Reserved.
S43 Reserved.
S48 V.42 negotiation control.
S54 Blind dialing delay.
S90 Reserved.
S91 PSTN transmit attenuation level.
S92 FAX transmit attenuation level.
S93 DTMF transmit attenuation level.
Table 5-3: S-Register Summary
Description Range Base Unit
0—255 Rings
0—255 Rings
0—255 ASCII
0—127 ASCII
0—127 ASCII
0—255 ASCII
3—255 s
1—255 s
0—255 s
— —
— —
50—255 ms
0—255 20 ms
0—255
—
— —
0—255 10 ms
0—255 10 min.
— —
— —
— —
— —
— —
— —
2—255
—
— —
6—25 dB
–
6—25 dB
5—25 dB
56K Softmodem
Command Reference
Default*
0†
0
43(2Bh)
13(0Dh)
10(0Ah)
8(08h)
3†
50†
2†
—
—
95†
50
0
48(00110000b)
50
0
—
7
0
—
—
7
2
—
10
10
6
- 85