Windows Marketplace V.90 - Manual (Page 58)

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S20=2 Startup at initial rate of 9600 or below.
Range: 0-2
Default: 0
S42 Auto Rate (default 1, range 0-1)
This command is used for testing and debugging only.
V.32bis and V.22bis auto rate is disabled. Retrain operation is disabled or enabled
in data mode, and fallback is disabled in data mode.
0 = auto rate disabled, 1 = enabled.
Range: 0-1
Default: 1
S43 Auto Mode (default 1, range 0-1)
This command is used for testing and debugging only.
V.32bis startup auto mode operation disabled.
0 = auto mode disabled, 1 = enabled.
Range: 0-1
Default: 1
S48 LAPM Error Control and Feature Negotiation (default 7)
S48 = 7 Negotiation enabled.
S 48 = 128 Negotiation disabled; forces immediate fallback options
specified in S36.
The following chart lists the S36 and S48 configuration settings necessary to ne-
gotiate certain types of connections:
S48=7 S48 =128
S36 = 0, 2 LAPM or hangup do not use
S36 = 1, 3 LAPM or async async
S36 = 4, 6 LPAM, MNP, or hangup MNP or hangup
S36 = 5, 7 LAPM, MNP, or async MNP or async