Specifications
86 MultiModemISI Hybrid Series, ISIHI-2S/2U
Chapter 4—MODEM AT Commands, S-Registers, Result Codes
S37 Maximum Dial Line Rate
Unit: decimal
Range: 019
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
Range: 0-1
Default: 1 (enabled)
Used for testing and debugging only. Enables and disables V.32bis start-up auto mode
operation. Set S43 to zero (0) to disable start-up auto mode, or 1 (the default) to enable
start-up auto mode.