Command Reference Manual
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3.3.3.33 S41 - General Bit Mapped Options Status
S41 indicates the status of command options.
Default:
13 (C3h) (00001101b)
Bits 0 -1
Compression selection (%Cn)
0 =
Disabled (%C0)
1 =
MNP 5 (%C1)
2 =
V.42 bis (%C2)
3 =
MNP 5 and V.42 bis (%C3) (Default.)
Bits 2, 6
Auto retrain and fallback/fall forward (%En)
Bit 6
Bit 2
0
0 =
Retrain and fallback/fall forward disabled (%E0)
0
1 =
Retrain enabled (%E1)
1
0 =
Fallback/fall forward enabled (%E2) (Default.)
Bit 3
Reserved
Bits 4-5
Reserved
Bit 7
Reserved
3.3.3.34 S46 - Data Compression Control
S46 controls selection of compression. The following actions are executed for the given values:
Range:
136 or 138
Default:
138
S46=136
Execute error correction protocol with no compression.
S46=138
Execute error correction protocol with compression. (Default.)
3.3.3.35 S48 - V.42 Negotiation Control
The V.42 negotiation process determines the capabilities of the remote modem. However, when the capabilities of the
remote modem are known and negotiation is unnecessary, this process can be bypassed if so desired.
Range:
0, 7, or 128 If an invalid number is entered, it is accepted into the S-Parameter, but S48 will act as if 128
has been entered.
Default:
7
S48=0
Disable negotiation; bypass the detection and negotiation phases; and proceed with LAPM.
S48=7
Enable negotiation. (Default.)
S48=128
Disable negotiation; bypass the detection and negotiation phases; and proceed at once with the
fallback action specified in S36. Can be used to force MNP.
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