[Asterisk-Users] Asterisk - Spandsp: fax header

Steve Underwood steveu at coppice.org
Tue May 17 17:01:03 MST 2005


Jean-Yves Avenard wrote:

> Hello Steve.
>
> On 17/05/2005, at 10:54 PM, Steve Underwood wrote:
>
>> When a fax is received the header you see is part of the image. As 
>> such, it ends up in the TIFF file as part of the image. It is not 
>> available as text anywhere. The only way to make it available as text 
>> would be to implement OCR. That is complex and messy, and I have no 
>> intention to try. The only information sent between the FAX machines 
>> as text is the "identifier" - a 20 character string, which the 
>> standard says should be digits, and which is usually set to the 
>> telephone number of the FAX machine.
>
>
> That's exactly what I was referring to. Is there any way to display 
> that in the image received?
> As I wrote previously I usually don't get the sender's callerID, but I 
> do get  the phone number printed when receiving with a usual fax 
> machine. It would be nice to get this information with spandsp too
>
> To send a fax I'm still using our Brother fax unit, works well...
>
> Sorry for not using a new threads before... I thought about it, but 
> the title was correct :)

The header is always in the received image. The TIFF file contains 
exactly the same image that a receiving FAX machine would print out.

Regards,
Steve




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