asterisk users - Aug 2004 - SpanDSP/RxFax help...

I've seen people mention that they have fax reception working with
Asterisk, spandsp, and app_rxfax.

I'm using the latest Asterisk from CVS, SpanDSP 0.0.1k, and the latest
app_rxfax.c (as mirrored by friendly list members recently), and libtiff
3.5.7.  Asterisk is detecting the fax signal properly, and executing
the fax extension in the dialplan.

The fax part of the dialplan is pretty simple.  The incoming call is
already answered by this point:

exten => fax,1,RxFax(/tmp/fax.tif)
exten => fax,2,Hangup

I do get files in /tmp called fax-[tr]x-audio-*, but no tif...
The console output follows.  I don't really know what any of it means...
Can anyone give me a hand getting this working?

In case it helps, I've got a T100P connected to a TA750 channel bank.
Zap/21 is an FXO port on the channel bank.

Thanks,
Rob


    -- Executing RxFAX("Zap/21-1", "/tmp/fax.tif") in new
stack
Changed from phase 0 to 1
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Start receiving document
Changed from phase 1 to 4
Sending ident
>>> CSI: 40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
DIS:
Preferred octets: 256
Can receive fax
Supported data signalling rates: V.27ter and V.29
R8x7.7lines/mm and/or 200x200pels/25.4mm OK
2D coding OK
Scan line length: 215mm
Recording length: A4 (297mm)
Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
R8x15.4lines/mm OK
Minimum scan line time for higher resolutions: T15.4 =
T7.7
>>> DIS: 80 00 ce f0 80 80 01
HDLC underflow in state 9
Changed from phase 4 to 3
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
<<< TSI: 43 34 38 36 34 20 34 39 39 20 34 31 33 20 20 20 20 20 20 20 20
TSI without final frame tag
Remote fax gave TSI as: "314 XXX XXXX"
<<< DCS: 83 00 c6 f0 80 80 00
DCS with final frame tag
In state 9
DCS:
Can receive fax
Selected data signalling rate: V.29, 9600bps
R8x7.7lines/mm and/or 200x200pels/25.4mm OK
2D coding OK
Scan line length: 215mm
Recording length: A4 (297mm)
Minimum scan line time: 0ms
Minimum scan line time for higher resolutions: T15.4 = T7.7
Get at 9600
Changed from phase 3 to 5
Fast carrier up
Fast carrier down
Fast carrier up
Fast carrier down
    -- Hungup 'Zap/21-1'


-- 
Rob Fugina, Systems Guy
robf@geekthing.com -- http://www.geekthing.com
My firewall filters MS Office attachments.

Hell is full. The damned are now in Tech Support.

On Thu, Aug 19, 2004 at 11:25:17AM -0500, Rob Fugina
wrote:
> I'm using the latest Asterisk from CVS, SpanDSP 0.0.1k, and the
> latest
> app_rxfax.c (as mirrored by friendly list members recently), and
> libtiff
> 3.5.7.  Asterisk is detecting the fax signal properly, and
> executing
> the fax extension in the dialplan.
I am using the same software versions, but don't have Zap channels.

> The fax part of the dialplan is pretty simple.  The incoming call
> is
> already answered by this point:
>
> exten => fax,1,RxFax(/tmp/fax.tif)
> exten => fax,2,Hangup
This should be enough.

> I do get files in /tmp called fax-[tr]x-audio-*, but no tif...
> The console output follows.  I don't really know what any of it
> means...
> Can anyone give me a hand getting this working?
Files like /tmp/fax-[tr]x-audio-* are just audio logs for debug.
LOG_FAX_AUDIO in ./src/t30.c is the trigger for this debugging.

It is not related to your problem, but files used as argument to
txfax() are left open.

This is not the answer to your problem, I know. But maybe theese
remarks are usefull anyway.


-- 
Stefan Tichy   <asterisk@pi4tel.de>