My Internet provider just implemented CGN. So, my WAN IP is no longer public.  With CGN, NAT is setup for outbound packets initiated from my end.  But for inbound packets, when remote Vertp clients connect to my FS, CGN blocks them. Therefore, I can no longer experiment with Verto.  

That's why I need to try TURN/ICE service which is open to public to relay media to my FS.  I understand STUN can only help in signalling.

Thanks for the additional inputs.

/Nandy

On Mon, Jul 31, 2017 at 3:42 PM, Tihomir Culjaga <tculjaga@gmail.com> wrote:

TURN helps in Symmetric NAT scenarios only

you should always try to get a direct connection first ( using STUN ) and if everything else fails, you can use TURN.

to check your NAT type, you can use stunclient program from stunprotocol.org

e.g.:  /stunclient --mode full stun.ekiga.net 3479

On 31 July 2017 at 02:44, Brian West <brian@freeswitch.org> wrote:

What issue are you trying to solve with turn? 

On Sat, Jul 29, 2017 at 1:42 AM Tihomir Culjaga <tculjaga@gmail.com> wrote:

FS doesn't use turn... but verto client can use it if you pass the parameter in init function ... like that:

   iceServers: [

      {url: 'turn:numb.viagenie.ca',credential: 'pass', username: 'user'},

      {url: 'stun:ripslinger.undo.it',},

      {url: 'stun:stun.schlund.de',},

      {url: 'stun:stun.ekiga.net',},

      {url: 'stun:stun01.sipphone.com',},

   ],

On 28 July 2017 at 15:54, Brian West <brian@freeswitch.org> wrote:

TURN is not needed with FreeSWITCH, plus we do not support it.

/b

On Thu, Jul 27, 2017 at 8:55 PM, Nandy Dagondon <nandy1925@gmail.com> wrote:

Hi folks,

I just learned that our Internet provider implemented CGN when I'm about to experiment WebRTC/mod_verto.  I already signed up a free TURN server account at http://numb.viagenie.ca/ to proceed.   Where do I place turn:numb.viagenie.ca in the config files? Is this correct?

sip_profiles/external.xml:

<param name="ext-rtp-ip" value="turn:numb.viagenie.ca"/>

<param name="ext-sip-ip" value="turn:numb.viagenie.ca"/>

/Nandy

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