Nortel 5399 参考指南

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页码 50
Model 5399 RAC Digital Modem Configuration Notes
U.S. Operation, Disable V.42bis Compression (V.42 only)
4
m1: v34 Full Duplex - Enabled (Default)
TrC: Trellis Coding - 4D 16 States (Default)
V8: V8 Handshake - Enabled (Default)
E: V34 Extension - v.34 Extended (Default) 
U.S. Operation, Disable V.42bis Compression 
(V.42 only) 
Leave all parameter options set to their default values except:
T: Tx V.42bis - Disabled (Not Default)
R: Rx V.42bis - Disabled (Not Default)
required config_bytes setting:
config_bytes 2 =4
U.S. Operation, MNP5 Primary: V.42/V.42bis 
Disabled
Leave all parameter options set to their default values except:
L: LAPM - Disabled (Not Default)
required config_bytes setting:
config_bytes 0 =4
Although other parameters affect V.42 operation, only 
parameter 0 needs to be changed to disable V.42 operation 
completely.