User`s manual

AT Command Reference Manual
6-12 1048
Table 6-5. Hang Up Status Codes
Code Cause Description
0-9 Call Placement and Termination
0 Normal and proper end of connection
1 Ring Detect without successful handshake
2 Call aborted, from +FK or AN
3 No Loop Current
10-19 Transmit Phase A & Miscellaneous Errors
10 Unspecified Phase A error
11 No Answer (T.30 T1 timeout)
20-39 Transmit Phase B Hangup Codes
20 Unspecified Transmit Phase B error
21 Remote cannot receive or send
22 COMREC error in transmit Phase B
23 COMREC invalid command received
24 RSPEC error
25 DCS sent three times without response
26 DIS/DTC received 3 times; DCS not recognized
27 Failure to train at 2400 bps or +FMINSP value
28 RSPREC invalid response received
40-49 Transmit Phase C Hangup Codes
40 Unspecified Transmit Phase C error
43 DTE to DCE data underflow
50-69 Transmit Phase D Hangup Codes
50 Unspecified Transmit Phase D error
51 RSPREC error
52 No response to MPS repeated 3 times
53 Invalid response to MPS
54 No response to EOP repeated 3 times
55 Invalid response to EOP
56 No response to EOM repeated 3 times
57 Invalid response to EOM
58 Unable to continue after PIN or PIP
70-89 Receive Phase B Hangup Codes
70 Unspecified Receive Phase B error
71 RSPREC error
72 COMREC error
73 T.30 T2 timeout, expected page not received
74 T.30 T1 timeout after EOM received
90-99 Receive Phase C Hangup Codes
90 Unspecified Receive Phase C error
91 Missing EOL after 5 seconds
92 Unused code
93 DCE to DTE buffer overflow
94 Bad CRC or frame (ECM or BFT modes)
100-119 Receive Phase D Hangup Codes
100 Unspecified Receive Phase D errors
101 RSPREC invalid response received
102 COMREC invalid response received
103 Unable to continue after PIN or PIP
120-255 Reserved Codes
Note:
Some codes are not implemented.