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AT Commands
Table 5-1. Response Messages (Continued)
Code
Message
53
CARRIER 4800
54
CARRIER 7200
55
CARRIER 9600
56
CARRIER 12000
57
CARRIER 14400
58
CARRIER 16800
59
CARRIER 19200
60
CARRIER 21600
61
CARRIER 24000
62
CARRIER 26400
63
CARRIER 28800
64
CARRIER 600
65
PROTOCOL
NEGOTIATING
70
PROTOCOL NONE
71
PROTOCOL MNP
LEVEL 1
72
PROTOCOL MNP
LEVEL 2
73
PROTOCOL MNP
LEVEL 3
74
PROTOCOL MNP
LEVEL 4
75
PROTOCOL MNP
LEVEL 5
76
PROTOCOL V.42
77
PROTOCOL V.42BIS
78
CONNECT 300
79
CONNECT 600
80
CONNECT 16800
81
CONNECT 21600
82
CONNECT 24000
5-12
Meaning
Link rate 4800 bps
Link rate 7200 bps
Link rate 9600 bps
Link rate 12000 bps
Link rate 14400 bps
Link rate 16800 bps
Link rate 19200 bps
Link rate 21600 bps
Link rate 24000 bps
Link rate 26400 bps
Link rate 28800 bps
Link rate 600 bps
Training process complete and protocol
negotiation begins
No protocol active
MNP level 1 active
MNP level 2 active
MNP level 3 active
MNP level 4 active
MNP level 5 active
V.42 LAPM active
V.42 bis LAPM compression active
DTE rate 300 bps
DTE rate 600 bps
DTE rate 16800 bps
DTE rate 21600 bps
DTE rate 24000 bps
V.3400
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