[asterisk-users] Fax Between IAX Trunks

[Steve Totaro]

Comments inline.

On Tue, Jul 1, 2008 at 9:52 AM, Alexander Lopez <Alex.Lopez at opsys.com> wrote:
> OK, there could be a few items here:
>
>
>
> 1                     Faxes usually do not work over straight IP. I know
> they can and many including myself have had success the mechanics of the IP
> network usually won't allow it.

On the same LAN it should work OK, using a dedicated NIC and a
crossover cable to the HylaFax server is the best way if possible.

>
> 2                     If you are using anything other than a/u law forget
> it.

I use SLIN

>
> 3                     What is the connectivity between the Asterisk boxes?
> If they are plugged into the same private backbone (ie Same Ethernet
> network) you have a fighting chance. If not, it is up to the Gods of Network
> congestion.

True.  Again, a direct connection to the fax server via crossover
cable is the best method.

>
> 4                     You may want to read up on the IAXModem pages, Mr,
> Underwood, explains the use of IAXModem and gives a few pointers on useing
> the IAXModem to terminal/originate calls on the same machine that has the
> TDM circuits and use remote serial to bring the fax data back to the hylafax
> machine.
>

I think his is the root of the problem.  Not understanding how
IAXmodem works with HylaFax.

Thanks,
Steve Totaro

>
>
> Alex
>
>
>
>
>
>
>
> ________________________________
>
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Gustavo A
> Gonzalez
> Sent: Tuesday, July 01, 2008 9:35 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Fax Between IAX Trunks
>
>
>
> Hello! I need to send Faxes from an Asterisk box to an Asterisk + Iaxmodem +
> Hylafax installed on  other box. I have setup IAX trunks between this boxes,
> all works fine but can´t send faxes from one to other, Im trying with or
> without NVFaxDetect application but does not work. Is there a way to get it
> working?. If I connect a fax machine directly to Asterisk with Iaxmodem and
> Hylafax, I have no problem. But between Iax Trunks nothing happened and the
> fax machine registered on the first PBX give me a communication error.
> Thanks for any help or idea to setup and get it working.
>
> Gustavo A. González
> Dto. de Infraestructura
> Despegar.com, Inc.
> ggonzalez at despegar.com
>
>
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> AstriCon 2008 - September 22 - 25 Phoenix, Arizona
> Register Now: http://www.astricon.net
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>