[asterisk-users] Oddity with FFA

[Mike Diehl]

Steve,

I appreciate you elaborating on my problem.  I don't suppose this is as
easy as putting a wait(3) in my dial plan before hangup.....?  (Didn't
think so.)

Aside from checking (and hoping) for a newer version of FFA that fixes this
issue, I guess there's not much I can do, then.

Thanks again.

Mike.


On Tue, Mar 11, 2014 at 12:27 AM, Steve Underwood <steveu at coppice.org>wrote:

> Hi Mike,
>
> If the sending machine keeps trying it might be the call has been hung up
> by asterisk before its own acknowledgement message has finished being sent.
> There have been bugs like this in the past, and people can be pretty casual
> about making changes which hang up aggressively. A FAX system should really
> wait for the final DCN message before disconnecting, to ensure both sides
> have seen what they need. Spandsp does that, but I am not sure about FFA.
>
> Regards,
> Steve
>
> On 03/11/2014 03:03 AM, Mike Diehl wrote:
>
>> Steve,
>>
>> I BELIEVE the fax is complete because the fax image is a form that
>> appears to only be a single page.
>>
>> But, since FFA isn't providing acknowledgement, the sending fax machine
>> is resending the document multiple times!
>>
>> Mike.
>>
>>
>> On Mon, Mar 10, 2014 at 12:49 PM, Steve Underwood <steveu at coppice.org<mailto:
>> steveu at coppice.org>> wrote:
>>
>>     On 03/11/2014 12:36 AM, Mike Diehl wrote:
>>
>>         Hi all,
>>
>>         For the most part, we are finding that Fax for Asterisk works
>>         pretty
>>         well.  However, we have seen some wierdness that we'd like to
>>         try to
>>         fix.
>>
>>         Once in a while, we will get a partial result report for a
>>         given fax
>>         but when we look at the actual .tiff image, it looks to be
>>         complete.
>>         This is causing our users to not get a positive
>>         acknowledgement when
>>         they send the fax.
>>
>>         Is there anything we can do to mitigate this?
>>
>>         Mike.
>>
>>     How do you know the FAX is complete? If a page was received, the
>>     sending machine said more pages were to follow, and then it
>>     dropped the call, is that a complete FAX?
>>
>>     Steve
>>
>>
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>
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