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

[Alex Balashov]

On 03/04/2013 06:53 AM, Mitan Lopez wrote:

> I understand, but some times 2 UAs have audio one side voice is clear
>  but in other side voice is just like train sound (or wind sound) is
> this from NAT too?

No.  NAT does not introduce any acoustic anomalies;  it would simply 
prevent the reachability of audio altogether.  What you describe sounds 
like a bad DSP or gateway similar.

... unless the handset you are using generates this kind of noise when 
it is not receiving incoming RTP.

-- Alex

-- 
Alex Balashov - Principal
Evariste Systems LLC
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