Western Telematic Data/FaxModem - Manual (Page 22)

Register Default Function
S29 20 Sets the duration (in tenths of a second) of the V.21
answer mode fallback timer.
S30 0 Reserved.
S31 128 Reserved.
S32 2 Bit mapped register setup for 28.8 modems only. To
set the register, see the instructions for S13.
Bit Value Result
0 1 V.8 Call Indicate enabled.
1 2 Enables V.8 mode.
3 8 Disable V.34 modulation
4 16 Disable 33.6 Kbps support.
5-7 32-128 Reserved
S33 0 Bit mapped register setup for 28.8 modems only. To
set the register, see the instructions for S13.
Bit Value Result
0 1 Disable 2400 symbol rate
1 2 Disable 2743 symbol rate
2 4 Disable 2800 symbol rate
3 8 Disable 3000 symbol rate
4 16 Disable 3200 symbol rate
5 32 Disable 3429 rate
6 64 Reserved
7 128 Disable shaping.
S34 0 Bit mapped register for 28.8 modems only. To set
registers, see instructions for S13.
Bit Value Result
0 1 Disable 8S-2D trellis encoding.
1 2 Disable 16S-4D trellis encoding.
2 4 Disable 32S-2D trellis encoding.
3 8 Disable 64S-4D trellis encoding.
4 16 Disable nonlinear coding.
5 32 Disable TX level deviation.
6 64 Disable Pre-emphasis.
7 128 Disable Pre-coding.
S35-S37 Reserved.
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RMM User’s Guide