[asterisk-users] rxfax detection problems with multiple contexts

[Mayo Jordanov]

Thanks Andrew! I had it in separate contexts originally, but for some  
reason it wasn't working with fax detection. I didn't realize I could  
drop rxfax onto the s extension, for some reason I kept thinking it  
was somehow connected with the fax extension only. Works beautifully  
now, thanks a lot.

regards,
mayo

On Dec 16, 06, at 19:06 , Andrew Joakimsen wrote:

>
>
> If you are using one line for fax only then you do not need to do  
> fax detect. Put it in its own context and make ths s extension be  
> Rxfax.
>
> Everyone always tries to over-compliate stuff, and it seems to me  
> the less you know about asterisk the more elaborate and  
> overcomplicated schemes people can come up with.
>
> On 12/16/06, Mayo Jordanov <lists at oyam.ca> wrote: Hello,
>
> I have a rather odd problem with Asterisk detecting faxes. I have two
> POTS lines coming into the box (TDM400P). Line 1 is for voice, Line 2
> is fof fax. When I set them up with channel => 1-2 in zapata.conf ,
> all is fine, but as soon as I have two channel => definitions,
> Asterisk is unable to detect faxes. The fax line is not supposed to
> ring local phones, so the most obvious solution was to try and split
> the contexts. The configuration below is my current setup that works
> almost flawlessly. The bits that aren't working are pretty annoyances
> that result from using single context for both lines.
>
> With the setup the way I want it, last two lines of channel 1
> configuration and whole channel 2 configuration in zapata.conf would
> be uncommented and there would be no fax detection in from-analog-zap
> context - as per the comments in the config. As it is now, from-
> analog-zap2 may not be giving enough time for fax detection, but I've
> tried variations. Generally, all it will do is keep on ringing and
> ringing and not detecting the fax tone. I've tried turning off echo
> cancelation and few other things with no luck.
>
> Is this possible bug in chan_zap or something related? Is there any
> way I can debug more? From just looking at the console it looks like
> a regular incoming call that keeps ringing and falling though. Any
> ideas or recommendations?
>
> Thanks,
> mayo
>
>
>
> The setup is as follows:
>
> zapata.conf:
> [channels]
> language=en
> switchtype=national
> signalling=fxs_ks
> usecallerid=yes
> hidecallerid=no
> callwaiting=yes
> usecallingpres=yes
> callwaitingcallerid=yes
> threewaycalling=yes
> transfer=yes
> canpark=yes
> cancallforward=yes
> callreturn=yes
> echocancelwhenbridged=no
> echocancel=64
> echotraining=800
> callgroup=1  ; i do not use call groups, left it in as it's default
> pickupgroup=1
> rxgain=0
> txgain=0
> group=1
> immediate=no
> context=from-analog-zap1
> faxdetect=both ; normally would be: none
> channel => 1-2 ; normaly would be: 1
>
> ;channel 2 ; normally would be uncommented
> ;echocancelwhenbridged=no
> ;echocancel=64
> ;echotraining=800
> ;rxgain=0
> ;txgain=0
> ;context=from-analog-zap2
> ;faxdetect=both
> ;immediate=no
> ;group=1
> ;usecallerid=no
> ;signalling=fxs_ks
> ;channel => 2
>
> Both channels are in group 1 on purpose, as both lines may be used
> for outgoing calls.
>
> extensions.conf:
> [from-analog-zap1]
> include => incoming
>
> ; normally this wouldn't be here if zapata.conf worked as intended.
> this bit would get handled by from-analog-zap2
> exten => fax,1,GotoIf($["${CHANNEL}" != "Zap/2-1"]?4)
> exten => fax,2,Set(FAXFILE=/var/spool/asterisk-fax/${UNIQUEID}.tif)
> exten => fax,3,rxfax(${FAXFILE})
> exten => fax,4,Hangup
>
>
> [from-analog-zap2]
> exten => s,1,Answer
> exten => s,n,LookupCIDName
> exten => s,n,NoOp(CallerID: ${CALLERID})
> exten => s,n,Hangup
>
> exten => fax,1,Set(FAXFILE=/var/spool/asterisk-fax/${UNIQUEID}.tif)
> exten => fax,n,rxfax(${FAXFILE})
> exten => fax,n,Hangup
>
> exten => i,1,Hangup
> exten => h,1,Hangup
>
> [incoming]
> include => parkedcalls
>
> exten => s,1,Answer
> exten => s,n(zapateller),Zapateller(nocallerid)
> exten => s,n,LookupCIDName
> exten => s,n,NoOp(CallerID: ${CALLERID})
> exten => s,n(ring),Dial(SIP/2000&SIP/2001&SIP/2002,30)
> exten => s,n,Voicemail(u2999)
> exten => s,n,Hangup
> exten => s,n(ring)+101,Voicemail(b2999)
> exten => s,n,Hangup
>
> exten => i,1,Hangup
> exten => h,1,Hangup
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users