The first network in question, which to me the STUN server reveals as PJ_STUN_NAT_TYPE_PORT_RESTRICTED, is below another network that STUN shows as PJ_STUN_NAT_TYPE_SYMMETRIC. So, I'm running tests using ICE enabled, without setting up a TURN server, in an attempt to find them on the local network. However, I'm noticing that when ICE is enabled, the INVITE gets to the SIP server (Kamailio), but I can not figure out why the INVITE does not reach the other endpoint. The main problem I want to understand / solve in this case is the call on the local network (which is below a symmetric NAT), using STUN, because I will also receive calls outside this network, which apparently is already working well. Maybe it´s a simple problem, but I still can't understanded, Why does audio not "travel" to endpoints on the same network (with symmetric NAT) when STUN is enabled? Do I need a TURN server for audio to traffic on the same network? If anyone can help me, Thanks. Thiago Guimarães On Thu, May 11, 2017 at 3:32 PM, Thiago Guimarães <thiago.barcelos@xxxxxxxxx> wrote: > Hello, > > I'm using pjsua2 in conjunction with the classes and functions of pjlib for > an application. But I'm having a little problem, which I could not solve. > > On the same specific network, I have two endpoints registered on a remote > SIP server (public ip). When they are set to use STUN, I can do / accept > INVITE, but the audio does not travel over the network. In the same > environment, if one of the endpoints is not using STUN, audio travels > normally. Another detail, with STUN enabled at both endpoints, if one of > these endpoints is on another network, audio travels normally. > > However, in another network with the same characteristics > (PJ_STUN_NAT_TYPE_PORT_RESTRICTED) according to the STUN resolution, the two > endpoints "talk" normally. > > Evaluating the firewall of this first network, I found nothing that could be > blocking this communication. > > Comparing the pjsip logs to the Xcode console, I could not find any > information that could help me understand what's happening. > > If anyone can help me, > Thank > s > . > Thiago > Guimarães > . _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
