
5686G-PRO User Guide
Page
40
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94
Copyright © 2018 USR, a Division of UNICOM Global
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Default
Function
S28
8
Sets the duration in tenths of a second of the extra 3000/600 Hz answer tones
sent during V.32 hand-shaking. This gives V.32 modems additional time to
connect in V.32 mode before timing out.
If there is difficulty answering older, manually operated V.32 modems (for
example, modems that require a button to be pushed in order to dial), try
lengthening the duration of the extra tones. Setting S28 to zero eliminates the
extra tones resulting in a faster connect time if, for example, the Courier Lite
56K Business Modem is set to use V.21 modulation (300 bps) or V.23
modulation (1200 bps).
S29
20
Sets the duration, in tenths of a second, of the V.21 answer tone.
S32
9
Reserved
S34
0
Bit-mapped register. See the beginning of this section for information about
setting bit-mapped registers.
Bit
Value
Result
0
1
Disable V.32 bis. Used for troubleshooting; Technical
Support may ask you to disable V.32bis for testing
purposes.
1
2
Reserved
2
4
Reserved
3
8
Enable V.23. Required for some British connections.
4
16
Reserved
5
32
Reserved
6
64
Reserved
7
128
Disable V.32 terbo.
S39
10
Display transmit level in dBm with an implied minus sign. Read-only.