Maxim Integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA - Manual (Page 36)

V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043
36 Rev. 1.5
S78 Post Dial Call Progress Precise Detect Level
n 1 - 96

30 -45dBm threshold.
S78 determines at what minimum level precise call progress tones are detected after
dialing. Refer to table under S75.
S15 Calling Tone Off Time
n 0 – 255 in 100 ms unit

17 1.7 second
Calling tone is defined as a 1300Hz tone. See S28 / bit 7 for enabling/disabling calling tone
S16 Calling Tone On Time
n 0 – 255 in 10 ms unit
 60 600 ms
Calling tone is defined as a 1300Hz tone. See S28 / bit 7 for enabling/disabling calling tone
Data functions
S30 Data Modulation Selection

108
See following.
Precedence is from the highest to the lowest connection data rate.
Bit Value Mode
0 1 4-Wire mode
1 2 Bell202

2 4 V22bis
 3 8 V22
4 16 Bell212
 5 32 Bell103
 6 64 V21
7 128 V23
Country selection
dependent (S99)