User's Manual

Chapter 3 – Fax Class 2 Commands
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C) 70
The Class 2 response is the same as the Class 2.1 response except that the hang-up
cause is stored in the +FAXERR parameter and the <hsc> values are decimal codes
as described in Table 3.4.
Table 3.4. Hang-up Status Codes
Class 2.1 Class 2 Cause
00–0F 0–9 Call placement and termination:
00 0 Normal and proper end of connection
01 1 Ring detect without successful handshake
02 2 Call aborted from +FKS [FK] or <CAN>
03 3 No Loop Current
04 - Ringback detected, no answer (timeout)
05 - Ringback detected, answer without CED
10–1F 10–19 Transmit Phase A & miscellaneous errors
10 10 Unspecified Phase A error
11 11 No Answer (T.30 T1 timeout)
20–3F 20–39 Transmit Phase B hang-up codes
20 20 Unspecified transmit Phase B error
21 21 Remote cannot receive or send
22 22 COMREC error in transmit Phase B
23 23 COMREC invalid command received
24 24 RSPEC error
25 25 DCS sent three times without response
26 26 DIS/DTC received 3 times; DCS not recognized
27 27 Failure to train at 2400 bps or +FMS [+FMINSP] value
28 28 RSPREC invalid response received
40–4F 40–49 Transmit Phase C hang-up codes
40 40 Unspecified transmit Phase C error
41 - Unspecified image format error
42 - Image conversion error
43 43 host to modem data underflow
44 - Unrecognized transparent data command
45 - Image error, line length wrong
46 - Image error, page length wrong
47 - Image error, wrong compression code
50–6F 50–69 Transmit Phase D hang-up codes
50 50 Unspecified transmit Phase D error
51 51 RSPREC error
52 52 No response to MPS repeated 3 times
53 53 Invalid response to MPS
54 54 No response to EOP repeated 3 times
55 55 Invalid response to EOP
56 56 No response to EOM repeated 3 times
57 57 Invalid response to EOM
58 58 Unable to continue after PIN or PIP
70–8F 70–89 Receive Phase B hang-up codes
70 70 Unspecified receive Phase B error