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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