Problem sending out fax

› VitalPBX Community Support › General Discussion › Problem sending out fax

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    • November 18, 2019 at 12:49 am
    pftech-pf
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    Hi there,

    we haven’t used Virtual Fax module for about 1 month and it was working… now we’d like to use it again but I’ve noticed that we cannot send or receive at all.

    When we try sending out a fax, after some seconds, call is normally going out and connected to the called number, we get these errors on log:

    pbx.c: Executing [h@trk-2:2] Hangup(“IAX2/ttyIAX1-14679“, “”) in new stack
    pbx.c: Spawn extension (trk-2, h, 2) exited non-zero on ‘IAX2/ttyIAX1-14679’
    chan_iax2.c: Hungup ‘IAX2/ttyIAX1-14679’

    How can we fix this?

    We’re using codec G.711 alaw with T38 enabled (under SIP Settings –> Fax Settings –> Both fax detect and T.38 Pass-though enabled).

    In also we’ve already tried updating everything to the last version and I’ve tried to reinstall and / or manual reinstall virtual fax module (licensed), but nothing changed.

    Regards,

    Paolo

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  • Replies
    • November 18, 2019 at 1:13 am
    Jose Miguel Rivera
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    Did you make a full update? If you did, then, you have to restart the sever, due the kernel change and some modules or packages are tied to the kernel version.

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    • November 18, 2019 at 1:19 am
    Jose Miguel Rivera
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    You may check also if the following services are running:

    systemctl status hylafax-faxq.service
    systemctl status hylafax-hfaxd.service
    systemctl status iaxmodem.service
	
    #Check if the modemd is running:
      systemctl status faxgetty@MODEM.service
    #e.g.:
      systemctl status faxgetty@ttyIAX1.service
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    • November 18, 2019 at 6:42 am
    pftech-pf
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    Already done a full update yum update, rebooted and then checked those services. Everything seems fine and running!

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    • November 18, 2019 at 2:57 pm
    Jose Miguel Rivera
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    You may find the logs for any fax received or sent in the following path: /var/spool/hylafax/log/

    So, reading the logs, you could determine why the fax are not being send.

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    • November 18, 2019 at 3:20 pm
    pftech-pf
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    Ok thanks! It gives some errors. I send you the log (phone number are modified for privacy reasons):

    nov 18 16:04:18.58: [ 8707]: SESSION BEGIN 000000163 012412345678
    nov 18 16:04:18.58: [ 8707]: HylaFAX ™ Version 7.0.1
    nov 18 16:04:18.58: [ 8707]: SEND FAX: JOB 38 DEST 012412345678 COMMID 000000163 DEVICE ‘/dev/ttyIAX2’ FROM ‘Administrator <paolo@xxxxxxxxx.com>’ USER root
    nov 18 16:04:18.58: [ 8707]: STATE CHANGE: RUNNING -> SENDING
    nov 18 16:04:18.58: [ 8707]: <– [12:AT+FCLASS=1r]
    nov 18 16:04:18.58: [ 8707]: –> [2:OK]
    nov 18 16:04:18.58: [ 8707]: MODEM set XON/XOFF/FLUSH: input ignored, output disabled
    nov 18 16:04:18.62: [ 8707]: DIAL 012412345678
    nov 18 16:04:18.62: [ 8707]: <– [15:ATDT012412345678r]
    nov 18 16:04:31.27: [ 8707]: –> [7:CONNECT]
    nov 18 16:04:36.62: [ 8707]: –> [2:10 03]
    nov 18 16:04:36.62: [ 8707]: –> [10:NO CARRIER]
    nov 18 16:04:36.62: [ 8707]: MODEM No carrier
    nov 18 16:04:36.62: [ 8707]: <– [10:AT+FRS=21r]
    nov 18 16:04:36.62: [ 8707]: –> [5:ERROR]
    nov 18 16:04:36.62: [ 8707]: MODEM Command error
    nov 18 16:04:36.62: [ 8707]: Failure to receive silence (synchronization failure). {E100}
    nov 18 16:04:36.62: [ 8707]: <– [9:AT+FRS=7r]
    nov 18 16:04:36.62: [ 8707]: –> [5:ERROR]
    nov 18 16:04:36.62: [ 8707]: MODEM Command error
    nov 18 16:04:36.62: [ 8707]: Failure to receive silence (synchronization failure). {E100}
    nov 18 16:04:36.62: [ 8707]: <– [9:AT+FRH=3r]
    nov 18 16:04:36.62: [ 8707]: –> [5:ERROR]
    nov 18 16:04:36.62: [ 8707]: MODEM Command error
    nov 18 16:04:36.62: [ 8707]: SEND FAILED: JOB 38 DEST 012412345678 ERR Failure to receive silence (synchronization failure). {E100}
    nov 18 16:04:36.62: [ 8707]: <– [9:AT+FRS=7r]
    nov 18 16:04:36.62: [ 8707]: –> [5:ERROR]
    nov 18 16:04:36.62: [ 8707]: MODEM Command error
    nov 18 16:04:36.62: [ 8707]: Failure to receive silence (synchronization failure). {E100}
    nov 18 16:04:36.62: [ 8707]: <– [9:AT+FTH=3r]
    nov 18 16:04:36.62: [ 8707]: –> [5:ERROR]
    nov 18 16:04:36.62: [ 8707]: MODEM input buffering enabled
    nov 18 16:04:37.62: [ 8707]: <– [5:ATH0r]
    nov 18 16:04:37.62: [ 8707]: –> [2:OK]
    nov 18 16:04:37.62: [ 8707]: MODEM set DTR OFF
    nov 18 16:04:37.62: [ 8707]: MODEM set baud rate: 0 baud (flow control unchanged)
    nov 18 16:04:37.62: [ 8707]: STATE CHANGE: SENDING -> MODEMWAIT (timeout 5)
    nov 18 16:04:37.62: [ 8707]: SESSION END

    Can you help me? I really don’t know Hylafax hot it works!

    Regards,

    Paolo

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    • November 18, 2019 at 6:07 pm
    Jose Miguel Rivera
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    Are you sure your  VoIP provider has fax capabilities?

    May you share call trace from Asterisk CLI when fax is being send?

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