Hi all, When using STUN, I can detect my NAT type. The SDP contain x-NAT field (0: unknown, 1: full cone, ..., 6: symmetric) which tells Kamailio the NAT type of clients. Why doesn't Kamailio use that ?
On Mon, Mar 4, 2013 at 7:11 PM, Mitan Lopez <mita...@aol.com> wrote: > then what would be this bad DSP or RTP packages dropping reason for that > makes such noises? (for example if I speak louder that train soud gets > louder or when I speak low the win/train sound gets lower as well) > > Mitan Lopez > mita...@aol.com > > > -----Original Message----- > From: Alex Balashov <abalas...@evaristesys.com> > To: sr-users <sr-users@lists.sip-router.org> > Sent: Mon, Mar 4, 2013 3:25 pm > Subject: Re: [SR-Users] Cannot hear voice with symmetric NAT and STUN > > On 03/04/2013 06:53 AM, Mitan Lopez wrote: > > > I understand, but some times 2 UAs have audio one side voice is clear > > but in other side voice is just like train sound (or wind sound) is > > this from NAT too? > > No. NAT does not introduce any acoustic anomalies; it would simply > prevent the reachability of audio altogether. What you describe sounds > like a bad DSP or gateway similar. > > ... unless the handset you are using generates this kind of noise when > it is not receiving incoming RTP. > > -- Alex > > -- > Alex Balashov - Principal > Evariste Systems LLC > 235 E Ponce de Leon Ave > Suite 106 > Decatur, GA 30030 > United States > Tel: +1-678-954-0670 > Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > listsr-us...@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- Khoa Pham HCMC University of Science Faculty of Information Technology
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