Equisys technical notes

Technical guidance, explanations and fixes for our products

INFO: Modem hang-up status codes for class 2.0 fax

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ZTN1003

ID: ZTN1003

This Zetafax technical note applies to:

  • Zetafax 5 and later.

Summary

Zetafax supports fax modems using the common standards - Class 1, 1.0, 2 and 2.0.In general if the modem reports an error during connection or during the call, Zetafax will display an error message in the server monitor program (and in the server log file) - for common errors this will include a description of the error, while for "unexpected" errors it will give the error code in round brackets at the end of the message.

The list below gives details of these error codes, reproduced from the modem standards documentation, for use by technical support personnel in diagnosing modem problems.

More information

Values

Hang-up cause description

00 - 0F

Call placement and termination

00

01

02

03

04

05

Normal and proper end of connection

Ring detect without successful handshake

Call aborted, from +FKS or < CAN>

No Loop Current

Ringback detected, no answer (timeout)

Ringback detected, answer without CED

10 - 1F

Transmit Phase A and miscellaneous errors

10

11

Unspecified Phase A error

No answer (T.30 T1 timeout)

20 - 3F

Transmit Phase B hang-up codes

20

21

22

23

24

25

26

27

28

Unspecified transmit Phase B error

Remote cannot receive or send

COMREC error in Phase B

COMREC error in transmit Phase B

RSPREC error

DCS send three times without response

DIS/DTC received 3 times; DCS not recognised

Failure to train at 2400 bit/s or +FMS value

RSPREC invalid response received

40 - 4F

Transmit Phase C hang-up codes

40

41

42

43

44

45

46

47

Unspecified transmit Phase C error

Unspecified image format error

Image conversion error

DTE to DCE data underflow

Unrecognised transparent data command

Image error, line length wrong

Image error, page length wrong

Image error, wrong compression code

50 - 6F

Transmit Phase D hang-up code

50

51

52

53

54

55

56

57

58

Unspecified transmit Phase D error

RSPREC error

No response to MPS repeated 3 times

Invalid response to MPS

No response to EOP repeated 3 times

Invalid response to EOP

No response to EOM repeated 3 times

Invalid response to EOM

Unable to continue after PIN or PIP

70 - 8F

Receive Phase B hang-up codes

70

71

72

73

74

Unspecified receive Phase B error

RSPREC error

COMREC error

T.30 T2 timeout, expected page not received

T.30 T1 timeout after EOM received

90 - 9F

Receive Phase C hang-up codes

90

91

92

93

Unspecified receive Phase C error

Missing EOL after 5 seconds

Bad CRC or frame (ECM mode)

DCE to DTE buffer overflow

A0 - BF

Receive Phase D hang-up codes

A0

A1

A2

A3

Unspecified receive Phase D error

RSPREC invalid response received

COMREC invalid response received

Unable to continue after PIN or PIP

C0 - DF

- reserved for future standardisation

E0 - FF

- reserved for manufacturer specific use

00 - 09

Call placement and termination

00

01

02

03

Normal and proper end of connection

Ring detect without successful handshake

Call aborted, from +FKS or AN

No Loop Current

10 - 19

Transmit Phase A and miscellaneous errors

10

11

Unspecified Phase A error

No answer (T.30 T1 timeout)

20 - 39

Transmit Phase B hang-up codes

20

21

22

23

24

25

26

27

28

Unspecified transmit Phase B error

Remote cannot receive or send

COMREC error in transmit Phase B

COMREC invalid command received

RSPREC error

DCS send three times without response

DIS/DTC received 3 times; DCS not recognised

Failure to train at 2400 bit/s or +FMINSP value

RSPREC invalid response received

40 - 49

Transmit Phase C hang-up codes

40

41

Unspecified transmit Phase C error

DTE to DCE data underflow

50 - 69

Transmit Phase D hang-up code

50

51

52

53

54

55

56

57

58

Unspecified transmit Phase D error

RSPREC error

No response to MPS repeated 3 times

Invalid response to MPS

No response to EOP repeated 3 times

Invalid response to EOP

No response to EOM repeated 3 times

Invalid response to EOM

Unable to continue after PIN or PIP

70 - 89

Receive Phase B hang-up codes

70

71

72

73

74

Unspecified receive Phase B error

RSPREC error

COMREC error

T.30 T2 timeout, expected page not received

T.30 T1 timeout after EOM received

90 - 99

Receive Phase C hang-up codes

90

91

92

93

94

Unspecified receive Phase C error

Missing EOL after 5 seconds

Unused code

DCE to DTE buffer overflow

Bad CRC or frame (ECM to BFT modes)

100 - 119

Receive Phase D hang-up codes

100

101

102

103

Unspecified receive Phase D error

RSPREC invalid response received

COMREC invalid response received

Unable to continue after PIN or PIP

120 - 255

Reserved codes

References

For additional information on modem troubleshooting, please see the following Zetafax technical note:

ZTN1000-PRB Modem trouble shooting guide for Zetafax.

Last updated 4 January 2000 (GC/GW)

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