[asterisk-users] problems with hylafax + iaxmodem +asterisk1.8.5

[Larry Moore]

On 5/09/2011 10:05 PM, Alessio wrote:
> someone can help me to solve this problem?
>
> thanks
>
> --------------------------------------------------
> From: "Alessio" <alessio at asistar.it>
> Sent: Friday, September 02, 2011 5:10 PM
> To: "Lee Howard" <faxguy at howardsilvan.com>
> Cc: "Asterisk Users Mailing List - Non-Commercial Discussion" 
> <asterisk-users at lists.digium.com>
> Subject: Re: [asterisk-users] problems with hylafax + iaxmodem 
> +asterisk1.8.5
>
>> 1: from the phone i called  the fax-server
>> 2: from external fax i tried to send a fax to fax-server
>>
>> the results:
>> _

G'Day Alessio,

I replied to your original post suggesting you set up two IAX modems and 
get successful transmission working between them.

I suspect you want to use T.38 with IAX modem, I don't believe the IAX2 
channel supports T.38 hence I would suggest you remove the t38pt_udptl 
lines from your iax.conf files to avoid confusion.

I am assuming you are receiving your incoming facsimile using SIP, if so 
I would suggest you have only one reference to t38pt_udptl in that peers 
configuration and set it to "no".

Depending on whether the peer is dedicated to receiving facsimiles I 
would suggest you also include in your peer's configuration faxdetect=no 
otherwise if this is an Audio/FAX line I would suggest you set it to 
faxdetect=cng.

Once you have this working but really want to use T.38 then you will 
need to apply the T.38 Gateway patch to your 1.8.5.0 build, see 
https://issues.asterisk.org/view.php?id=13405 .

Changes you will need to make to your SIP peer is to set t38pt_udptl=yes 
and in your dial plan before the Dial() enable the gateway with 
Set(FAXOPT(t38gateway)=yes).

Larry.