What they typically do , is deep packet inspection or port blocking. The latter you can divert by changing the default port of 5060, the first can be circumvented by using tls ( then they can't analyse the internals of your packets).
If it still doesn t work you can push everything through a lightweight vpn tunnel like openvpn or tinc. Which is a doable alternative on a laptop , while it is a bit of a challenge on a mobile. But you could also just change 3g provider ;) Good luck! Sent from my iPhone > On 28 Feb 2014, at 05:03, Rene Montilva <renemonti...@gmail.com> wrote: > > Hi List > > I'm trying to call over 3G networks, but doesn't work, i think my mobile > provider block voip traffic, is there any way to hide voip traffic or jump > the provider block rule ?? > _______________________________________________ > 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 _______________________________________________ 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