On 01/26/2011 01:19 PM, Bryant Zimmerman wrote:
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*From*: "Kevin P. Fleming" <kpflem...@digium.com>
*Sent*: Wednesday, January 26, 2011 1:50 PM
*To*: asterisk-users@lists.digium.com
*Subject*: Re: [asterisk-users] res_fax
On 01/26/2011 12:42 PM, Bryant Zimmerman wrote:
Steve
Are there any undocumented options available with ReceiveFAX and the
res_fax_spandsp module.
I am having issues with getting t.38 to negotiate with Level 3 faxes but
if I force t.30 the fax comes in. But the fax does not fall back t.30 if
the t.38 fails
You haven't posted any logs of the failing attempts, or packet captures
of the SIP traffic, so it's pretty much impossible for anyone to help
you debug this (anyone who tried would just be guessing).
Steve did not write res_fax (which where SendFAX and ReceiveFAX come
from), and there are no 'undocumented' options available for it, because
it's open source and the source code shows all the options that are
available.
If you would like to try to figure out what is going on, start by
posting a *complete* log file from Asterisk for a failed inbound FAX
attempt, with 'core set debug 10' and 'core set verbose 10' and all
logger levels (including 'fax') enabled.
----------------------------------------------
Kevin
These were attached to another post. Here are the links again
Fax Debug.txt
<http://webmail.zktech.com/public/downloadfile.aspx?f=KERoF6PWf6e2FK8S5zgEDs02rFGdd7zE0AIG7tjbCR9a06oFY1NwFap58zDWva3BcdOp%2b%2f%2fuBo8%3d>
cap-t38.pcap
<http://webmail.zktech.com/public/downloadfile.aspx?f=ulHIhepag5qoKm0cTUmljmT%2f7YCcOPvzlyZcnZg%2fG2B25W%2fsSr6Uwbu%2bET3kbKw84pTJjtuqrPQ%3d>
Unfortunately that log capture is incomplete; it doesn't include any of
the messages that res_fax emits as it goes through T.38 negotiations.
Please ensure that your 'console' channel in logger.conf has
'debug,verbose,warning,notice,error,fax' enabled and that you have 'core
set verbose 10' and 'core set debug 10' set before the call attempt
begins (or at least before ReceiveFAX is executed). If the server is
only processing this particular call, then 'sip set debug on' would also
be helpful.
--
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kflem...@digium.com
Check us out at www.digium.com & www.asterisk.org
--
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