[asterisk-users] FAX Issues

[C F]

On Tue, Aug 9, 2011 at 6:00 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:
> On Tue, Aug 9, 2011 at 5:21 PM, C F <shmaltz at gmail.com> wrote:
>> On Tue, Aug 9, 2011 at 3:38 PM, Sassy Natan <sassyn at gmail.com> wrote:
>>> Hi,
>>> I would like to make sure I got it right:
>>> 1. Asterisk 1.4 doesn't support FAX support. It do however works if u sent
>>> fax from the PSTN and have anther FAX machine answer to it even if it is
>>> behind asterisk. This works like any regular phone, and as far as I know
>>> this mode known as T.38 pass through.
>>
>> No its not T.38 pass through. T.38 pass through is only if the 2 end
>> points negotiated T.38, i.e. a provider that supports T.38 and an ATA
>> that supports T.38. What you are describing will most likely fail if
>> there is any VoIP in between, and should succeed over pure TDM using
>> digium or similar cards.
>
> Fax was never officially supported by Asterisk/Digium using TDM cards.
>
> I works for the most part, but there is no comparison to a pure POTS
> line.  Much depends on the line quality, the sending and receiving fax
> devices.  Some places with good fax machines, PRIs coming in and some
> FXS ports would work just fine.
>
> Others, are a nightmare and make you look bad.
>
> Depending on your customer's fax needs, sometimes it is better to tell
> them to keep or have some POTS lines provisioned for reliable faxing
> and to back that up, bring up being able to reach 911 if the phone
> system is down and the company's liability, even though everyone has
> cell phones.  This is the best for TDM faxing with nothing fancy.
>
> I have sent people to www.trustfax.com
>
> TDM faxing is something that burned me more than once, so I don't suggest it.
>
>>
>>> 2. If u want asterisk 1.4 to able to sent and receive emails you will have
>>> to patch the source code using the spandsp patches. There are some other
>>> ways to make this work like using  IAX, hylafax  but I need to know if this
>>> is true. This mode is what know to be as NVFAX detected
>>
>> asterisk doesn't have the ability to send or receive emails. It does
>> have the ability to use something like sendmail to send/receive
>> emails.
>> I'm assuming its a typo and you meant faxes.
>> What exactly are you trying to accomplish? If you need to know
>> something go ahead and try/test it and report back. After all that is
>> what we all did to be able to answer it. Apparently the fact that
>> others tried it and told you that it works still warrants a
>> question:"I need to know if this is true"
>>
>
> I have been advised that everyone must post their solutions to the
> list so that you don't have to test.  I think it was a self appointed
> list moderator.  People are required to come back, aknowledge that
> something worked and give credit.  Flaw: Just because something worked
> for someone doesn't mean that your solution wouldn't work better.
>
> Anyways, I am with you.  I learned this stuff with very little
> documentation except .conf examples and code.  Integration is where
> things get really fun and creative.  Logically testing and failing and
> testing until you find your solution is extremely rewarding (at least
> to me).  Making a Definity G3 and Asterisk fully integrate can cause
> severe rage followed by euphoria, so be warned.  Being creative is
> dangerous to some on the list.

Wow, I cant believe that someone else on this list is admitting to the
orgasm integrating a Definity with asterisk can give one. But it takes
so much foreplay and believe me its worth it. :)

>
> Try iaxmodem and hylafax.  Alex B did a very nice writeup on how to
> set that up so that it works very well.
>
>>
>>> 3. Now version 1.6 support Fax in a better way then 1.4. There is app_fax.c
>>> in the source code. Can someone please tell me what does this apps do?
>>
>> I assume you meant than not then, but I'm not sure if its a typo, you
>> might just not know.
>> app_fax.c does faxing. The question is what are YOU trying to do?
>>
>>
>>> 4. Version 1.8 as two modes: SpanDSP mode and some other method, what is
>>> the different between then.... can someone please help?
>>
>> Whats the other mode?
>>
>
> The best mode for T38 is probably Freeswitch or Callweaver.
>
>>
>>>
>>> Thanks
>>> Sassy
>>> --
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>               http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>