[asterisk-bugs] [JIRA] (ASTERISK-23166) T.38 Fax outgoing call via chan_ooh323 breaks after rtptimeout timer

[Alexander Anikin (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-23166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Anikin updated ASTERISK-23166:
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    Status: Open  (was: Triage)
    
> T.38 Fax outgoing call via chan_ooh323 breaks after rtptimeout timer 
> ---------------------------------------------------------------------
>
>                 Key: ASTERISK-23166
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23166
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Addons/chan_ooh323, Core/RTP, Resources/res_fax_spandsp
>    Affects Versions: 11.2.0, 11.7.0
>         Environment: CentOS 6.5 2.6.32-431.3.1.el6.x86_64  Asterisk 11.2-cert3 Spandsp FAX Driver: 20110122 075024
>            Reporter: Sergey Tishchenko
>
> I'm faced with T.38 fax-problem on chan_ooh323. This test maked in local environment with quintum tenor DX2060, but i tried with external h323 provider and got the same result. 
> When I start SendFAX I gets RTP lack error after rtptimeout(ooh323.conf) time if value of this time less than time of fax sending.
> And after call clearing Asterisk don't close UDP sockets opened for RTP media before T.38 handshake.
> If I increase rtptimeout in ooh323.conf greater than time of sending (f.e. 300sec) fax sending finish successfully but udp sockets still remain opened in any case.
> In both cases Asterisk sends RTCP packets after call finished from suspended UDP-socket to RTP port of remote endpoint.
> I tried to change different ooh323.conf parameters: directmedia, directrtpsetup, faststart, mediaforconnect, faxtdetect - no result. 
> And tried to change another options in rtp.conf and udptl.conf - no result. Bug is stable in my environment.
> I tried make it on many Asterisk 11 branches and on last trunk from SVN - in all bulids it working same.
> In Asterisk 10.9 it working the same, but udp sockets closes properly after RTP-timeout call crash.
> Voice calls via chan_ooh323 working good on this environment.
> Please help me.
> I'm very needs in fax-machine on chan_ooh323.
> I attach some files with console debug output, tcpdump sniff, h323_log and netstat output with suspended udp sockets.
> https://www.dropbox.com/s/q3u5wzrjxbrvz2j/console.log
> https://www.dropbox.com/s/19i15bpfdamubjv/h323_log
> https://www.dropbox.com/s/jyli6rj6d4dcv32/h323faxcall.cap
> https://www.dropbox.com/s/j6lz6ms1exm7utz/netstat.log

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