[asterisk-users] Fax detection ...

[James]

You can trick their machine into sending tones.  The following code with 
send tones that a "terminating" fax machine would normally respond with.
This will even force really old G2 fax machines to respond.

indications.conf:
faxrec = !2100/2600,!0/10,!1850/2600

[custom-fax-did]
exten => s,1,SetVar(FAXFILE=/var/spool/asterisk/fax/${UNIQUEID}.tif)
exten => s,2,SetVar(EMAILADDR=${FAX_RX_EMAIL})
exten => s,3,SetCallerID(<${FROM_DID}>)
exten => s,4,Answer
exten => s,5,Playtones(faxrec)
exten => s,6,Wait(6)
exten => s,7,rxfax(${FAXFILE})
exten => s,8,system(tiff2pdf -p letter ${FAXFILE} -o ${FAXFILE}.pdf)
exten => s,9,system(mime-construct --to ${EMAILADDR} --subject "Fax DID 
${CALLERIDNUM}" --attachment ${CALLERIDNUM}.pdf --type 
application/pdf --file ${FAXFILE}.pdf)
exten => s,10,system(rm ${FAXFILE} ${FAXFILE}.pdf)
exten => s,11,Hangup

James Taylor
www.metrotel.net




----- Original Message ----- 
From: "Lee Howard" <faxguy at howardsilvan.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Monday, October 02, 2006 2:16 PM
Subject: Re: [asterisk-users] Fax detection ...


> phil.dawson at marnock.com wrote:
>
>>It all boils down to this:  If they don't send a tone I won't get the fax.
>>
>
> And I certainly understand this approach.  However, there are some 
> situations where this is simply not suitable - where missing a fax costs 
> money.  Take, for example, the real estate industry where a fickle 
> customer (isn't everyone fickle when dealing with real estate?) can be 
> surveying mortgage quotes (frequently done by fax) and if you don't get 
> their faxed authorization to pull their credit report and then you call 
> them two days later to find out where it is ... well that customer may 
> have already signed with another lender... and that just cost that agent 
> 1-2% of the mortgage price (so that lost fax easily cost $2000 in lost 
> opportunity).
>
> Lee.
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