[asterisk-users] Asterisk and Faxing

[Barry Fawthrop]

Kevin P. Fleming wrote:
> Barry Fawthrop wrote:
> 
>> I have been looking around and haven not been able to find a working example
>> I have a fresh/new  install of Asterisk 1.6.2.0  with dahdi 2.2.1 and libpri 1.4.10.2
>>
>> I use a sangoma A200 card so I am using wanpipe 3.4.7
>> If I use zaptel which I read I need for app_rxfax then asterisk crashes with segfaults on startup
>>
>> asterisk[2624]: segfault at 30353466 ip b7eb538b sp bffda26c error 4 in libc-2.7.so[b7e3f000+155000]
>> asterisk[2647]: segfault at 30353466 ip b7e6338b sp bfb7708c error 4 in libc-2.7.so[b7ded000+155000]
>> asterisk[2666]: segfault at 30353466 ip b7dfe38b sp bfa6e4ec error 4 in libc-2.7.so[b7ded000+155000]
> 
> If you are using Asterisk 1.6.2.0 you don't need app_rxfax; Asterisk
> 1.6.2.0 includes app_fax as a standard application.
> 

Thanks Kevin

Okay I found I had to re-compile with spandsp support in order for app_fax.so to be created
./configure --with-spandsp



In sip.conf I have

exten => fax,1,NoOp(a:${CALLERID}   b:${CALLERID(num)}     c:${CALLERID(name)[1~})
exten => fax,2,Answer()
exten => fax,3,wait(2)
exten => fax,4,Zapateller(answer,nocallerid)
exten => fax,5,Set(TIFF=/var/spool/asterisk/fax_in/fax_${STRFTIME(,,%Y%m%d-%H%M)}_${RAND(1)}.tiff)
exten => fax,6,ReceiveFax(${TIFF})
exten => fax,7,NoOp()
exten => fax,8,System(send_fax.sh ${TIFF} "Fax Message Fax From ${REMOTESTATIONID}" me at you.com)
exten => fax,9,Hangup()


I created this a send_fax.sh BUT I must admit I could not find one

#!/bin/sh

FAXFILE=$1
SUBJECT=$2
RECIPIENT=$3

tiff2ps -2eaz -w 8.3 -h 11.7 $FAXFILE |
ps2pdf |
mime-construct --to $RECIPIENT --subject $SUBJECT --attachment fax.pdf --type application/pdf -- file -


and when I receive a fax call I get

    -- Executing [fax at fromteliax:1] NoOp("SIP/teliax-0000000c", "a:   b:352xxxYYYY     c:CALLER NAME ") in new stack
    -- Executing [fax at fromteliax:2] Answer("SIP/teliax-0000000c", "") in new stack
    -- Executing [fax at fromteliax:3] Wait("SIP/teliax-0000000c", "2") in new stack
    -- Executing [fax at fromteliax:4] Zapateller("SIP/teliax-0000000c", "answer,nocallerid") in new stack
    -- Executing [fax at fromteliax:5] Set("SIP/teliax-0000000c", "TIFF=/var/spool/asterisk/fax_in/fax_20091223-1951_1857493655.tiff") in new stack
    -- Executing [fax at fromteliax:6] ReceiveFAX("SIP/teliax-0000000c", "/var/spool/asterisk/fax_in/fax_20091223-1951_1857493655.tiff") in new stack
this three times and then

[Dec 23 19:39:09] WARNING[6964]: app_fax.c:503 transmit_audio: It looks like we hung. Aborting.
[Dec 23 19:39:09] WARNING[6964]: app_fax.c:223 phase_e_handler: Error transmitting fax. result=49: The call dropped prematurely.
[Dec 23 19:39:09] WARNING[6964]: app_fax.c:811 transmit: Transmission error
  == Spawn extension (fromteliax, fax, 5) exited non-zero on 'SIP/teliax-00000006'


The directory /var/spool/asterisk/fax_in/  exists  but nothing is ever created in the tiff file(s) is not found
owned by asterisk:asterisk


Any further assistance would be greatly appreciated.
Thanks