Mod Fax: Error, problems and questions...
hi, after we managed to setup fs with mod_fax and our socket outbound script, we have some questioons about an error and problems, when sending a fax: 1.) there is one error, we get always - no matter, if the fax was sent successfully or not. in the pastebin under http://pastebin.freeswitch.org/6338 you can see the error in the last line. this is the full log of a fax in fs console loglevel debug. 2.) fax works quite good. we couls send long faxes over a normal fax machine without any problem. but for fast testing we are using a softfax (fritz fax). here we have some more problems. mostly a fax with one page will pass through, but more pages will mostly fail. because we are new to the fax thing, we do not really know, what the messages tell us about failed faxes. here are the top 3 messages (unordered and always one at a time - nerver at once): variable_fax_result_text => Received a DCN while waiting for a DIS fax_result_text => The HDLC carrier did not stop in a timely manner fax_result_text => Unexpected message received could someone please tell us, where the problem might be? thanks dennis
Dennis, Thanks for your input on the fax stuff! We will check this out and report back. Question: if one of the devs would like to SSH into your system to do further testing, is that okay? Thanks, MC On Thu, Dec 4, 2008 at 11:45 AM, Dennis <odermann@googlemail.com> wrote:
hi,
after we managed to setup fs with mod_fax and our socket outbound script, we have some questioons about an error and problems, when sending a fax:
1.) there is one error, we get always - no matter, if the fax was sent successfully or not. in the pastebin under http://pastebin.freeswitch.org/6338 you can see the error in the last line. this is the full log of a fax in fs console loglevel debug.
2.) fax works quite good. we couls send long faxes over a normal fax machine without any problem. but for fast testing we are using a softfax (fritz fax). here we have some more problems. mostly a fax with one page will pass through, but more pages will mostly fail. because we are new to the fax thing, we do not really know, what the messages tell us about failed faxes. here are the top 3 messages (unordered and always one at a time - nerver at once):
variable_fax_result_text => Received a DCN while waiting for a DIS
fax_result_text => The HDLC carrier did not stop in a timely manner
fax_result_text => Unexpected message received
could someone please tell us, where the problem might be?
thanks dennis
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Also need to know is this via SIP or TDM? /b On Dec 4, 2008, at 2:09 PM, Michael Collins wrote:
Dennis,
Thanks for your input on the fax stuff! We will check this out and report back.
Question: if one of the devs would like to SSH into your system to do further testing, is that okay?
Thanks, MC
my server (including me) is your slave. anthony already feels home on my server, so you are greatly invited ;-) it is quite late in germany, so i feel, that we should meet in irc tomorrow, if this is ok for you. @brian we get everthing over sip. so we receive the faxes over sip. the faxes, which we send for testing (not over fs or the same machine) are sent over isdn. 2008/12/4 Michael Collins <msc@freeswitch.org>:
Dennis,
Thanks for your input on the fax stuff! We will check this out and report back.
Question: if one of the devs would like to SSH into your system to do further testing, is that okay?
Dennis wrote:
hi,
after we managed to setup fs with mod_fax and our socket outbound script, we have some questioons about an error and problems, when sending a fax:
1.) there is one error, we get always - no matter, if the fax was sent successfully or not. in the pastebin under http://pastebin.freeswitch.org/6338 you can see the error in the last line. this is the full log of a fax in fs console loglevel debug.
That looks like something annoying but harmless. It looks like the comms path is disabled slightly before the flow of packets is turned off. That's probably just a silly slip in the code.
2.) fax works quite good. we couls send long faxes over a normal fax machine without any problem. but for fast testing we are using a softfax (fritz fax). here we have some more problems. mostly a fax with one page will pass through, but more pages will mostly fail. because we are new to the fax thing, we do not really know, what the messages tell us about failed faxes. here are the top 3 messages (unordered and always one at a time - nerver at once):
variable_fax_result_text => Received a DCN while waiting for a DIS
fax_result_text => The HDLC carrier did not stop in a timely manner
fax_result_text => Unexpected message received
could someone please tell us, where the problem might be?
Does Fritz FAX means the ISDN card stuff? If so, that should be something well proven. However, the errors you are getting sound like the FAX at the far end is buggy. I think a log of the audio from one or two of these calls is needed for analysis. Regards, Steve
2008/12/5 Steve Underwood <steveu@coppice.org>:
1.) there is one error, we get always - no matter, if the fax was sent successfully or not. in the pastebin under http://pastebin.freeswitch.org/6338 you can see the error in the last line. this is the full log of a fax in fs console loglevel debug.
That looks like something annoying but harmless. It looks like the comms path is disabled slightly before the flow of packets is turned off. That's probably just a silly slip in the code.
yup, because the error always appear, i successful or not, this error can't be a big problem. i just do not like red lines in the log ;-)
Does Fritz FAX means the ISDN card stuff? If so, that should be something well proven. However, the errors you are getting sound like the FAX at the far end is buggy. I think a log of the audio from one or two of these calls is needed for analysis.
yes, fritz fax is the isdn stuff. normally it works very well. how can i get a log of the audio? when a fax is coming in, there happens quite little in the console at loglevel debug. i pasted all into the pastebin. if there are more possibilities to get mor information, please let me know.
On Dec 5, 2008, at 5:54 AM, Dennis wrote:
2008/12/5 Steve Underwood <steveu@coppice.org>:
1.) there is one error, we get always - no matter, if the fax was sent successfully or not. in the pastebin under http://pastebin.freeswitch.org/6338 you can see the error in the last line. this is the full log of a fax in fs console loglevel debug.
That looks like something annoying but harmless. It looks like the comms path is disabled slightly before the flow of packets is turned off. That's probably just a silly slip in the code.
yup, because the error always appear, i successful or not, this error can't be a big problem. i just do not like red lines in the log ;-)
Does Fritz FAX means the ISDN card stuff? If so, that should be something well proven. However, the errors you are getting sound like the FAX at the far end is buggy. I think a log of the audio from one or two of these calls is needed for analysis.
yes, fritz fax is the isdn stuff. normally it works very well. how can i get a log of the audio? when a fax is coming in, there happens quite little in the console at loglevel debug. i pasted all into the pastebin. if there are more possibilities to get mor information, please let me know.
You should be able to record session with stereo to get the audio here, the other easy way would be to use pcapsipdump tool (look for it on the wiki) to get a pcap of the whole call. Mike
it's me again about mod fax... it is short before christmas and my whish is, to get mod fax working quite reliable. is this possible under optimal conditions? all our tests lead by far to more failed faxes than received faxes. i really like the fax feature and would like to see it beeing usable. is it just pure luck, if a fax was received or are there some conditions out there, which could help beeing mod fax reliable? second question: what about t38? will it come? is there chance, that it will come? where are the difficulties with mod fax? our fs servers are standing directly beside the sip switch of our carrier. from the carriers switch, there is a 50 cm long cat6 cable going into our cisco-switch. from the cisco switch there are 50 cm long cat6 cables going into our fs servers. i doubt, that there can be a signifant packet loss. are there some settings, we could try out or is the faxing stuff just unusable, till t38 is supported?
You don't know where the audio goes after that switch in the same room until it gets to the guy with the fax machine. No it will not be improved by Christmas. Not a chance. Yes it will probably be much more reliable once it can do T38. Be happy with what you have for the holiday season. On Fri, Dec 19, 2008 at 10:44 AM, Dennis <odermann@googlemail.com> wrote:
it's me again about mod fax... it is short before christmas and my whish is, to get mod fax working quite reliable. is this possible under optimal conditions?
all our tests lead by far to more failed faxes than received faxes. i really like the fax feature and would like to see it beeing usable.
is it just pure luck, if a fax was received or are there some conditions out there, which could help beeing mod fax reliable? second question: what about t38? will it come? is there chance, that it will come? where are the difficulties with mod fax?
our fs servers are standing directly beside the sip switch of our carrier. from the carriers switch, there is a 50 cm long cat6 cable going into our cisco-switch. from the cisco switch there are 50 cm long cat6 cables going into our fs servers. i doubt, that there can be a signifant packet loss. are there some settings, we could try out or is the faxing stuff just unusable, till t38 is supported?
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hi anthony, thanks a lot for the clear answer. that is something i can work with :-) i also want to thank you for the great support you gave us within the last months and the great freeswitch. our fs servers are up and running and everything works great (only fax is not working). have a nice christmas (till i contact you because of some consulting for final checks ;-) dennis 2008/12/19 Anthony Minessale <anthony.minessale@gmail.com>:
You don't know where the audio goes after that switch in the same room until it gets to the guy with the fax machine.
No it will not be improved by Christmas. Not a chance.
Yes it will probably be much more reliable once it can do T38.
Be happy with what you have for the holiday season.
On Fri, Dec 19, 2008 at 10:44 AM, Dennis <odermann@googlemail.com> wrote:
it's me again about mod fax... it is short before christmas and my whish is, to get mod fax working quite reliable. is this possible under optimal conditions?
all our tests lead by far to more failed faxes than received faxes. i really like the fax feature and would like to see it beeing usable.
is it just pure luck, if a fax was received or are there some conditions out there, which could help beeing mod fax reliable? second question: what about t38? will it come? is there chance, that it will come? where are the difficulties with mod fax?
our fs servers are standing directly beside the sip switch of our carrier. from the carriers switch, there is a 50 cm long cat6 cable going into our cisco-switch. from the cisco switch there are 50 cm long cat6 cables going into our fs servers. i doubt, that there can be a signifant packet loss. are there some settings, we could try out or is the faxing stuff just unusable, till t38 is supported?
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-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/
AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch
FreeSWITCH Developer Conference sip:888@conference.freeswitch.org iax:guest@conference.freeswitch.org/888 googletalk:conf+888@conference.freeswitch.org pstn:213-799-1400
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ahh, just a second. it seems that i did not realize a small missunderstanding in you answer. i do not want to SEND a fax, i just want to RECEIVE a fax. so the fax comes in at out carrier and the rest is sent over about 1m of cat6 to our fs server. is there a difference or does it not matter, if we want to receive or send a fax? 2008/12/19 Anthony Minessale <anthony.minessale@gmail.com>:
You don't know where the audio goes after that switch in the same room until it gets to the guy with the fax machine.
No it will not be improved by Christmas. Not a chance.
Yes it will probably be much more reliable once it can do T38.
Be happy with what you have for the holiday season.
On Fri, Dec 19, 2008 at 10:44 AM, Dennis <odermann@googlemail.com> wrote:
it's me again about mod fax... it is short before christmas and my whish is, to get mod fax working quite reliable. is this possible under optimal conditions?
all our tests lead by far to more failed faxes than received faxes. i really like the fax feature and would like to see it beeing usable.
is it just pure luck, if a fax was received or are there some conditions out there, which could help beeing mod fax reliable? second question: what about t38? will it come? is there chance, that it will come? where are the difficulties with mod fax?
our fs servers are standing directly beside the sip switch of our carrier. from the carriers switch, there is a 50 cm long cat6 cable going into our cisco-switch. from the cisco switch there are 50 cm long cat6 cables going into our fs servers. i doubt, that there can be a signifant packet loss. are there some settings, we could try out or is the faxing stuff just unusable, till t38 is supported?
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-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/
AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch
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no difference. On Fri, Dec 19, 2008 at 11:33 AM, Dennis <odermann@googlemail.com> wrote:
ahh, just a second. it seems that i did not realize a small missunderstanding in you answer.
i do not want to SEND a fax, i just want to RECEIVE a fax. so the fax comes in at out carrier and the rest is sent over about 1m of cat6 to our fs server.
is there a difference or does it not matter, if we want to receive or send a fax?
2008/12/19 Anthony Minessale <anthony.minessale@gmail.com>:
You don't know where the audio goes after that switch in the same room until it gets to the guy with the fax machine.
No it will not be improved by Christmas. Not a chance.
Yes it will probably be much more reliable once it can do T38.
Be happy with what you have for the holiday season.
On Fri, Dec 19, 2008 at 10:44 AM, Dennis <odermann@googlemail.com> wrote:
it's me again about mod fax... it is short before christmas and my whish is, to get mod fax working quite reliable. is this possible under optimal conditions?
all our tests lead by far to more failed faxes than received faxes. i really like the fax feature and would like to see it beeing usable.
is it just pure luck, if a fax was received or are there some conditions out there, which could help beeing mod fax reliable? second question: what about t38? will it come? is there chance, that it will come? where are the difficulties with mod fax?
our fs servers are standing directly beside the sip switch of our carrier. from the carriers switch, there is a 50 cm long cat6 cable going into our cisco-switch. from the cisco switch there are 50 cm long cat6 cables going into our fs servers. i doubt, that there can be a signifant packet loss. are there some settings, we could try out or is the faxing stuff just unusable, till t38 is supported?
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http://lists.freeswitch.org/mailman/options/freeswitch-users
-- Anthony Minessale II
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-- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ AIM: anthm MSN:anthony_minessale@hotmail.com <MSN%3Aanthony_minessale@hotmail.com> GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com<PAYPAL%3Aanthony.minessale@gmail.com> IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:888@conference.freeswitch.org <sip%3A888@conference.freeswitch.org> iax:guest@conference.freeswitch.org/888 googletalk:conf+888@conference.freeswitch.org<googletalk%3Aconf%2B888@conference.freeswitch.org> pstn:213-799-1400
participants (6)
-
Anthony Minessale
-
Brian West
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Dennis
-
Michael Collins
-
Michael Jerris
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Steve Underwood