ICE and STUN are media related so you should have at least have a call going established without media. Do INVITEs get without doing anything regarding STUN/ICE?
On 17 May 2017 05:38, "Thiago Guimarães" <thiago.barcelos@xxxxxxxxx> wrote:
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
> .
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