[Asterisk-Users] faxing

[Steve Underwood]

matthew at txlink.net wrote:

>What are your experiences with faxing through Asterisk to the PSTN?
>
>We are using g.711u as a codec, and are originating/terminating with Broadvox as
>well as through our own PSTN gateways.
>
>We have had some luck with incoming faxes coming into our network from Broadvox
>DIDs.  They work 50% of the time.  Not sure yet on PSTN incoming since nobody
>that is using FAX is in our local rate centers.
>
>Outgoing has been bad.  It seems to work the best if the Sipura user agents have
>echo cancelation off, but we have to have echo cancelation on our outbound
>gateways or there is echo in the voice path.  Faxing outbound works very
>rarely, and if it does, it usually can only send a page or two before we get
>the infamous "Poor line condition".
>
>Does anyone have a suitable FAX setup working?
>

Using G.711 u or A may work, but don't count on it. Take a look at  
http://www.opencall.org/faq

Regards,
Steve