Multi-Tech Systems ISIHP-2U - Manual (Page 98)

98 MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD
Modem AT Commands & S-Registers
S37 Maximum Dial Line Rate
Unit: decimal
Range: 0–19
Default: 0
Sets the maximum dial line rate. When set to zero (0), the maximum dial line
rate is the same as the maximum modem speed. This is the most common
setting and allows other modem functions to actually determine the line rate
used for each connection. It is the default. Consider using S37 to set a
maximum dial line rate if you need to artificially retain a lower modem speed.
0 = maximum modem speed 13 = 19200 bps
1 = reserved 14= 21600 bps
2 = 1200/75 bps 15 = 2400 bps
3 = 300 bps 16 = 26400 bps
4 = reserved 17 = 28800 bps
5 = 1200 bps 18 = 31200 bps
6 = 2400 bps 19 = 33600 bps
7 = 4800 bps
8 = 7200 bps
9 = 9600 bps
10 = 12000 bps
11 = 14400 bps
12 = 16800 bps
S42 Enable / Disable Auto Rate
Unit: decimal
Range: 0-1
Default: 1 (enabled)
Enables and disables the 56K auto rate. Retrain and fallback are disabled in
data mode. Set S42 to zero (0) to disable auto rate, or 1 (the default) to
enable auto rate.
S43 Enable / Disable V.32bis Start-up Auto Mode
Unit: decimal