This has turned into a giant bug report.  Bug reports go in jira.  Putting details about bug reports here will absolutely guarantee that they will not get looked at.  As i've already said once this week on the list about this issue, we need someone who can map out how to reproduce this issue and get it onto jira so we can track down the issue.  Without that, without a doubt, it will not get fixed.

As for downgrading to 1.4 to fix the issue, I understand, but know that we are not putting other bugfixes into 1.4 anymore and eventually you will hit a bug you need to upgrade for, and you will be left without working faxes if we don't get this fixed.  Please step up and help us track this down so we can get it fixed properly.

Thanks
Mike



On May 17, 2016, at 2:20 PM, Stefan Kainz <stefan.kainz@1012.at> wrote:

And on the voip part, we're extensively using g711 voip for fax, and in most cases it works like a charme. 
But if there's high latency or packet loss - as you said,  forget it. 

Regards,

Sent from my iPhone

On 17 May 2016, at 19:54, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:

I just upgraded to the latest FreeSWITCH (version 1.6.8-15 from files.freeswitch.org/repo/deb/freeswitch-1.6/), so I'm starting to work on FA
X again.
So far success with:
FAX machine -> Grandstream HT502 -> LAN -> FS -> Flowroute -> PSTN -> POTS line -> FAX modem (TRENDnet brand) -> HylaFAX.

Then I tried:
FAX machine -> Grandstream HT502 -> LAN -> FS -> Flowroute -> FS -> application="rxfax"

This failed when I set fax_enable_t38_request=true and fax_enable_t38=true, but worked when I removed those lines. So what's going on here? When I remove those lines is T.38 not being used at all? I was under the impression that without T.38, FAX machines would fail because of latency present in VoIP. Is that not true? What about when the FAX machine is sending from the PSTN instead of the ATA?

-- 
Steve
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