[asterisk-users] FAX with SIP

[Kevin P. Fleming]

On 07/21/2011 04:34 PM, Joaquin Sosa wrote:
> On Mon, Jul 18, 2011 at 07:58, Steve Davies<davies147 at gmail.com>  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.

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