Re: [OpenSER-Users] T.38 and RTP Read too short

Hi Jens,

RTPproxy does not change anything in the RTP stream (not event the size of the packages), so I think the guilty one is not the rtpproxy - it just a transparent relay.

Have you tried this directly, with no rtpp in the middle?

Regards, Bogdan

Jens Carl wrote:

Hey everybody,

I use OpenSER (openser 1.3.2-tls (x86_64/linux), svnrevision: 2:4420) and the RTPproxy (1.1) and everything works fine expect for one thing.

If I try to use T.38 with following scenario:

SIP-FAX1 (NAT) <-> RTPProxy+OpenSER <-> Asterisk <-> Carrier

the Asterisk always produce this kind of warning: 'WARNING[1493]: rtp.c:1145 ast_rtp_read: RTP Read too short'.

The SIP-signaling with the re-INVITE works fine. If I get an re-INVITE I call the force_rpt_proxy( 'l' ).

Has anybody an idea what I should change in the RTPproxy to get this scenario working?

Thanks for your help,

 Jens

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