The port restricted NAT should work in normal conditions (only symetric NAT has problems with STUN). The problem maybe is not only the NAT of your provider and there are more restrictions on it. Did you try with another sipserver?. About the problem with the ping/tracert, is posible that the ICMP protocol won`t be permited on the sipserver (only 5060UDP). Fring works because uses a proxy server and could have another tecnique to manage the NAT (media proxy, ...) or is less restricted that your actual sipprovider. On Mon, Dec 1, 2008 at 4:39 PM, Rawshan Iajdani <iajdani at provati.com> wrote: > The symbian application is not working with my mobile operator internet. > I saw its a port restricted NAT they are using. The STUN resolve the IP > address 119.35.38.8 and put the on SIP header. I tried to ping or trace > route the IP with No luck. It cant be found. I tried using STUN separate > client with different STUN server. The result is same IP. But why the hell > it cant be found with tracert? > > The I connected my PC with the internet from mobile with PC suite and tried > X-Lite. X-Lite does not work either. Request time out. > > The last thing I tried is Fring. Fortunately or Unfortunately it works just > fine. But seemed like Fring does use their own proxy server to route the SIP > packet??? Anything special going on behind???? > > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > -- William Brito -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081201/c0eb0b09/attachment-0001.html>
