[Freeswitch-users] Is FAXing reliable on FreeSwitch w/ T.38

[bruce at sqls.net]

------ Original Message ------
From: "Steve Underwood" <steveu at coppice.org>
To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
Sent: 5/1/2014 9:46:44 PM
Subject: Re: [Freeswitch-users] Is FAXing reliable on FreeSwitch w/ T.38

>
>85% success rate on the first try is appalling. You should be getting
>well below 1% failures on any half decent setup.
>
>Regards,
>Steve
>

Well, Steve.  I would absolutely LOVE to learn what I'm doing wrong so I 
could get higher success rates.  I'd buy beer, amazon gifts, send cash, 
and give praise if I could get some improvement!

For what it's worth, I'm running FreeSWITCH 1.2.23 on CentOS 6.5 on a 
old (maybe this is the issue? but I've read that even a modest system 
should be fine) Dell with Intel Pentium(R) D 2.8G cpu and 4GB of ram 
connected over a fiber internet connection to Flowroute.  I've also 
tried Babytel since they're supposedly good for faxing but there doesn't 
seem to be much of a difference.

I've tried a range of different settings for spandsp but generally my 
current defaults is to just enable t38, request t38, enable ecm, and 
enable v17.  My LUA script allows me to adjust the settings per CID/DID 
and for some I've dropped v17.

I'm also logging details of faxes and keeping pcap records but I just 
don't know enough about reading the files in wireshark to understand 
where the issue is.

Also, the -vast- majority of my faxes are inbound, if that matters.