On 07/21/2011 04:43 PM, Israel Gottlieb wrote:


On Fri, Jul 22, 2011 at 12:39 AM, Kevin P. Fleming <[email protected]
<mailto:[email protected]>> wrote:

    On 07/21/2011 04:34 PM, Joaquin Sosa wrote:

        On Mon, Jul 18, 2011 at 07:58, Steve Davies<[email protected]
        <mailto:[email protected]>>  wrote:

            The magic sauce that you need is "T.38" - Asterisk 1.6
            supports this
            to a limited degree, and your ITSP will need to support it.

            The sip.conf.sample file and the voip-info wiki has all the
            information you need to try it out.


        Correct. However it would be helpful to note T.38 support in
        Asterisk
        is broken. Take a T.38 ITSP, T.38 enabled Asterisk and T.38 ATA and
        try to send a fax. It won't work!


    We do this in our testing all the time, and it works fine. Since you
    didn't specify any particular version of Asterisk, there's no way to
    associate your "It won't work" statement with anything in
    particular. Given the variations of T.38 implementations that exist
    in ATAs, carrier networks and other places, *any* T.38 connection
    that involves implementations from more than one vendor is
    (unfortunately) likely to have problems, whether any version of
    Asterisk is involved or not



well I tried  a linksys spa 8000 and 2102 thru
asterisk 1.8.3
1.8.4
1.6.2.16-19
sonus switch at itsp (012 israel)

and no luck

We'd be happy to investigate why it failed, if you can capture the packet streams on both sides of Asterisk. Frequently, it's a configuration issue in at least one of the devices in the system.

--
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: [email protected] | SIP: [email protected] | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at www.digium.com & www.asterisk.org

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