RightFax

Published on August 19th, 2014 | by Kieran

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BrookTrout ISDN Cause Codes

The following is a list of general ISDN Cause Codes or Error Return Codes as reported by the Dialogic BookTrout API and applies to fax boards and Fax-over-IP (FoIP) / SR140. These codes are often referenced in RightFax in the fax history.

The fax history shows a Resulting fax status code. Both the first and second sets of numbers are gathered by the Brooktrout API to report on the call progress (reflected in the first set of numbers before the semi-colon) and the fax progress (reflected in the second set of numbers after the semi-colon).

Return Codes
Description
1
 HNG_RNG_DET Ring detected without a successful handshake.
2
 HNG_ABORT Call aborted.
3
 HNG_NO_LOOP_CURRENT No loop current or A/B signaling bits. Note that if someone has dialed to your fax server and then hangs up, then the fax server would generate this return code.
4
 HNG_ISDN_DISCONNECT ISDN disconnection.
5
 HNG_INVAL_POLL_ATT Invalid polling attempt.
11
 HNG_T1_TIMEOUT No answer, T.30 T1 time-out.
20
 HNG_XMITB_TIMEOUT Unspecified transmit Phase B error.
21
 HNG_XMITB_NORM Remote cannot receive or send.
22
 HNG_XMITB_MISC COMREC error, Phase B transmit.
23
 HNG_XMITB_COMREC_VCNR COMREC invalid command received.
24
 HNG_XMITB_SE RSPREC error.
25
 HNG_XMITB_DCS_FTC DCS send three times without response.
26
 HNG_XMITB_DIS_FTC DIS/DTC received three times; DCS not recognized.
27
 HNG_XMITB_TRAINFAIL Failure to train.
28
 HNG_XMITB_RSPREC_VCNR RSPREC invalid response received.
29
 HNG_XMITB_COMREC_DCN DCN received in COMREC.
30
 HNG_XMITB_RSPREC_DCN DCN received in RSPREC.
33
 HNG_PHASEB_INCOMPAT_FMT Incompatible fax formats, for example, a page width mismatch.
34
 HNG_XMITB_INVAL_DMACNT Invalid DMA count specified for transmitter.
35
 HNG_XMITB_FTM_NOECM Binary File Transfer specified, but ECM not enabled on transmitter.
36
 HNG_XMITB_INCMP_FTM Binary File Transfer mode specified, but not supported by receiver.
37
 HNG_XMITB_INCMP_EFF Remote does not support EFF page options required by host.
38
 HNG_XMITB_NOEFF Remote does not support EFF page coding.
40
 HNG_XMITD_RR_NORES No response to RR after three tries.
41
 HNG_XMITD_CTC_NORES No response to CTC, or response was not CTR.
42
 HNG_XMITD_T5TO_RR T5 time out since receiving first RNR.
43
 HNG_XMITD_NOCONT_NSTMSG Do not continue with next message after receiving ERR.
44
 HNG_XMITD_ERRRES_EOREOP ERR response to EOR-EOP or EOR-PRI-EOP.
45
 HNG_XMITD_RTN_DCN Transmitted DCN after receiving RTN.
46
 HNG_XMITD_PPR_EOR EOR-MPS, EOR-EOM, EOR-NULL, EOR-PRI-MPS, or EOR-PRI-EOM sent after fourth PPR received.
51
 HNG_XMITD_SE RSPREC error.
52
 HNG_XMITD_MPS_FTC No response to MPS, repeated three times.
53
 HNG_XMITD_MPS_VCNR Invalid response to MPS.
54
 HNG_XMITD_EOP_FTC No response to EOP repeated three times.
55
 HNG_XMITD_EOP_VCNR Invalid response to EOP.
56
 HNG_XMITD_EOM_FTC No response to EOM, repeated three times.
57
 HNG_XMITD_EOM_VCNR Invalid response to EOM.
60
 HNG_XMITD_RSPREC_DCN DCN received in RSPREC.
61
 HNG_XMITD_PPSNULL_NORES No response received after third try for PPS-NULL.
62
 HNG_XMITD_PPSMPS_NORES No response received after third try for PPS-MPS.
63
 HNG_XMITD_PPSEOP_NORES No response received after third try for PPS-EOP.
64
 HNG_XMITD_PPSEOM_NORES No response received after third try for PPS-EOM.
65
 HNG_XMITD_EORNULL_NORES No response received after third try for EOR-NULL.
66
 HNG_XMITD_EORMPS_NORES No response received after third try for EOR-MPS.
67
 HNG_XMITD_EOREOP_NORES No response received after third try for EOR-EOP.
68
 HNG_XMITD_EOREOM_NORES No response received after third try for EOR-EOM.
70
 HNG_RCVB_TIMEOUT Unspecified receive Phase B error.
71
 HNG_RCVB_SE RSPREC error.
72
 HNG_RCVB_MISC COMREC error.
73
 HNG_T2_PNOTREC T.30 T2 time-out, expected page not received.
74
 HNG_RCVB_T1_TIMEOUT T.30 T1 time-out after EOM received.
75
 HNG_NORMAL_RCV DCN received in COMREC. While this value is considered by the firmware to be a successful fax receive result, if it occurs in conjunction with BT_STATUS_ERROR_HANGUP, it still indicates that an error has occurred.
76
 HNG_RCVB_RSPREC_DCN DCN received in RSPREC.
77
 HNG_T2_TIMEOUT T.30 T2 time-out, expected page received.
78
 HNG_RCVB_INVAL_DMACNT Invalid DMA count specified for receiver.
79
 HNG_RCVB_FTM_NOECM Binary File Transfer specified, but ECM not supported by receiver.
101
 HNG_RCVD_SE_VCNR RSPREC invalid response received.
102
 HNG_RCVD_COMREC_VCNR COMREC invalid response received.
103
 HNG_RCVD_T3TO_NORESP T3 time-out; no local response for remote voice interrupt.
104
 HNG_RCVD_T2TO T2 time-out; no command received after responding RNR.
105
 HNG_RCVD_DCN_COMREC DCN received for command received.
106
 HNG_RCVD_COMREC_ERR Command receive error.
107
 HNG_RCVD_BLKCT_ERR Receive block count error in ECM mode.
108
 HNG_RCVD_PGCT_ERR Receive page count error in ECM mode.
109
 HNG_RCVD_EOR EOR received in phase D.
110
 HNG_RCVD_RNRTO Timeout while repeating RNR.
150
 HNG_RCVC_EOL_TIMEOUT No EOL received in a 5-second period.
151
 HNG_RCVC_BAD_MMR Bad MMR data received from remote.
240
 HNG_INTERRUPT_ACK No interrupt acknowledges, time-out.
241
 HNG_COMM_FAULT Loop current still present while playing reorder tone after timeout.
242
 HNG_T30_HOLDUP T.30 holdup time-out.
243
 HNG_HOLDUP_DCN DCN received from host in receive holdup section for FAX PAD mode.
244
 HNG_HOLDUP_DCN_NON_FPAD DCN received from host in receive holdup section for non-FAX PAD mode.
258
 DIAL_NO_DIAL_TONE No dial tone detected. Try checking the line and switch.
259
 DIAL_NO_LOOP_CUR No loop current detected. Try checking the line and switch.

Note:
In ExtraFax User Preferences document, there is a setting called “Fax Number” (i.e. the PersonalFaxNumber field), which allows entering of a custom fax number to be displayed in the fax cover page. By default, if a value has been specified for this setting, then ExtraFax’s Pre-TransmissionProcessing agent will copy that value to the AppCallerID field of the outgoing fax job, which controls the calling party number to be used by the Brooktrout program. This will work if the specified calling party number is a valid number. However, for some telcos, setting the calling party number with an invalid value is not allowed and may cause error. If that is the case, try setting the “Disable Using Personal Fax Number as the Calling Party Number” option in ExtraFax Server Configuration document to “Yes”, which is available since ExtraFax 8.0.1.
260
 DIAL_LOCAL_IN_USE Local phone in use successfully.
261
 DIAL_TRUNK_BUSY Busy trunk line detected.
265
 DIAL_SLOT_BUSY T1 time slot busy.
266
 DIAL_CALL_COLLISION Ringing detected during dialing.
267
 DIAL_NO_WINK 2nd or later wink missing for Feature Group D.
301
 FCP_BUSY1 Normal busy; remote end busy (off-hook). Busy signal received after the maximum number of retries, resend the fax at a later time.
302
 FCP_BUSY2 Normal busy; remote end busy (off-hook). Used instead of BUSY1 in certain countries. Busy signal received after the maximum number of retries, resend the fax at a later time.
303
 FCP_ROBUSY Reorder or fast busy; indicates that telephone company trunk lines are busy; on PBXs, indicates no available outside lines. No available outside lines. Try dialing the number from another phone. Try checking the line.
304
 FCP_RECALL Recall dial tone detected; signal generated when calling another party while already connected to one or more parties (for example, conference calling, call waiting). Number dialed is not a fax number. Try dialing the number from another phone to verify the number is a fax number.
305
 FCP_CONFIRM Confirmation tone; automated equipment acknowledges successful completion of caller requested feature (for example, call forwarding). This is not G2 confirmation tone (CFR2). This indicates there is a problem with the line, switch, or card. Try dialing the number from another phone to verify the number.
308
 FCP_RING1 Ringback detected; remote end is ringing. The Central Office connected to the dialled number generates this signal.
309
 FCP_RING2 Ringback detected; remote end is ringing. The Central Office connected to the dialed number generates this signal. Also known as double-ring, it is used in the U.K.
316
 FCP_HUMAN Answer (probable human) detected; does not match any other expected call progress signal patterns.
317
 FCP_ANSWER Remote end answered call; can occur immediately after a break in the ring-back cycle; like HUMAN, does not match any other call progress signal patterns, but is marked by silence. Number dialed is not a fax number. Try dialing the number from another phone to verify the number is a fax number.
318
 FCP_DIALTON Dial tone detected; usually indicates the dialing sequence did not break dial tone. This occurs when you did not access an outside line. Could be an invalid number or dialing configuration incorrect.
Related Support FAQ…
324
 FCP_SILENCE In VOICE mode, after dialing, no signal detected during the silence timeout. In ANSWER mode, no fax CNG tone detected after answering a call. Try dialing the number from another phone to verify the number is a fax number. Try checking the line and switch.
325
 FCP_RNGNOANS Indicates the remote end was ringing but did not answer. In fax mode, this result occurs after the ced_timeout (default: 40 secs) has expired and the line continues to ring (You can adjust the value of these timeout parameters in the btcall.cfg configuration file). Try dialing the number from another phone to verify the number is a fax number.
326
 FCP_G2DETCT Group 2 fax machine detected; remote machine is capable of sending and receiving G2 facsimiles only. Try checking the line.
Related Support FAQ…
327
 FCP_SITINTC Intercept tone detected; remote end originating failure; invalid telephone number or class of service restriction. With the ISDN board, this can also indicate a datalink mis-match (ptp or pmp). Possible bad number or phone service is down. Try dialing the number from another phone to verify the number is a fax number. If number is a valid fax number then try checking the line.
328
 FCP_QUIET After dialing the number, no energy detected on the line for the wait_for_ced timeout period; possible dead line. The line is down. Try dialing the number from another phone to verify the number is a fax number.
Related Support FAQ…
329
 FCP_SITVACODE Vacant tone detected; remote originating failure; invalid telephone number. Possible bad number. Try dialing the number from another phone to verify the number is a fax number.

Note:
In ExtraFax User Preferences document, there is a setting called “Fax Number” (i.e. the PersonalFaxNumber field), which allows entering of a custom fax number to be displayed in the fax cover page. By default, if a value has been specified for this setting, then ExtraFax’s Pre-TransmissionProcessing agent will copy that value to the AppCallerID field of the outgoing fax job, which controls the calling party number to be used by the Brooktrout program. This will work if the specified calling party number is a valid number. However, for some telcos, setting the calling party number with an invalid value is not allowed and may cause error. If that is the case, try setting the “Disable Using Personal Fax Number as the Calling Party Number” option in ExtraFax Server Configuration document to “Yes”, which is available since ExtraFax 8.0.1.
330
 FCP_SITREORD Reorder tone detected; end office (PBX) or carrier originating failure. Possible problem with the line coming into the Server. This will normally be a fast busy signal. Try dialing the number from another phone to verify the number.
331
 FCP_SITNOCIR No circuit detected; end office or carrier originating failure, possible dead line. No line is detected which could be a problem with the line, switch, or card.
332
 FCP_CNGDETCT CNG fax calling tone detected.
333
 FCP_RMTOFFHK Remote fax machine went off-hook (also known as Answer Supervision).
339
 FCP_ANSWER_TONE_DETECT Fax machine detected; usually a fax CED tone, but also fax V.21 signals when the remote machine does not send a CED tone before it sends the fax protocol information. Called a fax machine but it did not send the proper protocol. Could be a problem with the fax machine that is receiving the fax. Try resending the fax.
340
 FCP_UNKNOWN An error occurred due to an unknown cause. Try Resending the fax.
348
 FCP_ISDN_CALL_PROGRESS By enabling call progress on an ISDN D channel, one of the following values will be in the second byte of the FIFO buffer:
4: CALL_PROCEEDING: Call is proceeding normally.
5: CALL_ALERTING: Ringback detected; remote end is ringing.
6: CALL_CONNECTED: Call is connected.
7: CALL_DISCONNECTED: Call was disconnected.
Try checking the line and switch.
349
 FCP_ISDN_CALL_COLLISION Indicates that a call collision occurred on the ISDN line. Indicates there is a call going out on the same line as a call coming in. Try checking the line and switch.
500
 HNG_ERROR_INTERRUPT An error interrupt occurred, indicating a problem with the board too severe to continue.
501
 HNG_INTERRUPT_OVERRUN The application was unable to process interrupts from the board fast enough, and information was lost.
502
 HNG_UNEXPECTED_IRSDONE The channel generated an unexpected 03 (reset done) or 7F interrupt, indicating the existence of a firmware or hardware problem.
503
 HNG_IOCTL_ERROR An API command to the driver returned an error value, indicating that the driver or the operating system detected an error. This error often occurs when a channel locks up.
504
 HNG_OVERLAY_DLOAD_ERR Error reported at termination of fax overlay download.
505
 HNG_MAX_TIMEOUT Maximum timeout exceeded. This code occurs when the user configuration file parameter max_timeout has been enabled and the specified timeout has expired.

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About the Author

has worked with computers and technology for over 20 years. Based in the United Kingdom, he works as a Solution Engineer for Salesforce, specialising in all things Commerce, Digital and the Internet. Predominantly blogging on KieranLane.com he can also be found on Twitter @KieranLane, Instagram and Flickr.


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