[asterisk-users] Anyone have a reliable T.38 Solution

[Kevin P. Fleming]

On 01/11/2012 09:16 AM, Olivier wrote:
> 2012/1/11, Steve Underwood<steveu at coppice.org>:
>> On 01/11/2012 03:01 PM, Olivier wrote:
>>> 2012/1/5, Kevin P. Fleming<kpfleming at digium.com>:
>>>> On 01/04/2012 12:25 AM, Matt Darnell wrote:
>>>>> Aloha,
>>>>>
>>>>> We are looking to roll a solution that will have the following network
>>>>> layout:
>>>>>
>>>>> ISDN-PRI<-->    Asterisk<-->    T.38<-->    ATA<-->    Fax
>>>>>
>>>>> Does version 1.8 with the Digium fax driver have this capability?  I
>>>>> like 1.8 because it is a long term support version.
>>>>>
>>>>> What ATA's are people using?
>>>>>
>>>>> Any working solutions would be great!
>>>> What you are looking for is T.38 gateway mode (converting between T.30
>>>> over modems on a TDM circuit and T.38 over UDPTL), and the answer is no:
>>>> Asterisk 1.8 does not have T.38 gateway mode. Asterisk 10 does, and it
>>>> is supported using SpanDSP and res_fax_spandsp. It is not yet supported
>>>> by Digium's Fax for Asterisk commercial FAX module.
>>> Do you have any idea when  Digium's Fax for Asterisk commercial FAX
>>> module could roughly become supported ?
>> Are you really desperate to pay for functionality you can get for free?
>
> Not yet ;-)))))))))))
> But the increased fax sending speed (14.4 kbs/s says the datasheet but
> I must be too naive to still read datasheets) may be a feature
> interesting for some.
>
> By the way, which spandsp version would recommend for asterisk 10 ?
> spandsp-0.0.6pre18.tgz ?

There are currently no modem speed differences between res_fax_spandsp 
and res_fax_digium. Both support all commonly-used FAX modems except 
V.34. We do not currently have an estimate on when Fax For Asterisk will 
support T.38 gateway mode (or V.34, for that matter).

-- 
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