[Freeswitch-users] t38 issue

[Ken Rice]

There have been updates to t.38 since 1.2.0-rc2...  You should either be on
head or v1.2.stable branch




On 9/11/12 10:35 AM, "Michael Collins" <msc at freeswitch.org> wrote:

> I think the guys have made some improvements since 1.2.0-rc2. Any chance you
> can get at least up to 1.2.1-stable and retest?
> -MC
> 
> On Tue, Sep 11, 2012 at 1:48 AM, royj <royj at yandex.ru> wrote:
>> 
>> Hi all
>> 
>> There is some strange issue with t38-passthru (FreeSWITCH Version 1.2.0-rc2).
>> Task - t38-passthru
>> spa112(ip 1.1.1.1) <--(profile local)--> FreeSWITCH(ip 2.2.2.2)<--(profile
>> extrernal)--> Mediant 2000(ip 3.3.3.3); fax from spa112 to Mediant 2000.
>> In both profiles:
>> <param name="t38-passthru" value="true"/>
>> <param name="inbound-proxy-media" value="true"/>
>> <param name="inbound-late-negotiation" value="true"/>
>> 
>> Here is the sip-trace of the call with fax -
>> http://pastebin.freeswitch.org/19866
>> 
>> It is seen that t38 re-INVITE from spa112 (profile local) passed on and back
>> with "200 OK", but t38 from Mediant 2000 (profile external) is not (in
>> response to re-INVITE t38 (SDP, m=image) - "200 OK" with SDP m=audio). After
>> agreement the SDP, the data (v21-preamble) is not passed by freeswitch
>> between spa112 and Mediant 2000, and one of the party ends conversation with
>> message "no-signal" and then "by" .
>> 
>> Wiki says ( 
>> http://wiki.freeswitch.org/wiki/Proxy_Media#Why_you_almost_certainly_don.27t_
>> want_to_use_it ) that module mod_spandsp is required (if I understand
>> correctly), but "load mod_spandsp" does not change anything.
>> 
>> I would appreciate your help
>> 
>> --
>> Regards
>> royj
>> 
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>> 
>> 
>> 
>> 
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> 
> 

-- 
Ken
http://www.FreeSWITCH.org
http://www.ClueCon.com
http://www.OSTAG.org
irc.freenode.net #freeswitch

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