[SR-Users] Cannot hear voice with symmetric NAT and STUN

[Arsen Semionov]

Hi guys!

good question from 2013 :)
Maybe someone has experience and can confirm this?

My main question: is it possible to determine when it's required to use RTP
proxy ? In other words can we know that the client is behind symmetric NAT
device or we just use rtpproxy as a silver bullet?

Thanks!
Arsen.


Khoa Pham wrote
> Hi all,
> 
> When using STUN, I can detect my NAT type. The SDP contain x-NAT field (0:
> unknown, 1: full cone, ..., 6: symmetric) which tells Kamailio the NAT
> type
> of clients. Why doesn't Kamailio use that ?
> 
> -- 
> Khoa Pham
> HCMC University of Science
> Faculty of Information Technology





-----
Arsen Semionov
Eurolan VoIP Solutions
Tel: +442035198881
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