Ok, I've figured this out. This is an example of a simple glitch that could take a lot of time to figure out (^_^).

The problem was that I was sending a starter_anounce.wav at 48000 sampling rate in the beginning, when the endpoints were negociating a 8000 rate. Apparently this caused the file to be played successfully in the beginning and broke things, folowingly (on the UACs side), making them to not play any more media.

This explains why I was seeing packets coming in and out freeswitch machine and no issues on the networking side.

Thanks you Stanislav and Mirko for engaging in this discussion.

Stefan

On Mon, Jul 4, 2016 at 4:56 PM, Anonim Stefan <fanx07@gmail.com> wrote:
Thanks for the link.

I tried setting "apply-candidate-acl", "apply-inbound-acl" with an ACL allowing the private "172.16.x.x" network, as described here [1] with no success. I tried starting freeswitch with "-nonat" parameter with no success of working RTP.

RTP comes with source 172.16.x.x and I am routing it based on a static route on freeswitch machine via public IP gateway which knows to forward it further.

[1] https://freeswitch.org/confluence/display/FREESWITCH/ACL

Stefan


On Mon, Jul 4, 2016 at 12:13 AM, Stanislav Sinyagin <ssinyagin@gmail.com> wrote:
I might actually be wrong with this, so you better read the docs at
https://freeswitch.org/confluence/display/FREESWITCH/NAT


On Sun, Jul 3, 2016 at 10:40 AM, Anonim Stefan <fanx07@gmail.com> wrote:
> Thank you Stanislav, I will try.
>
> The question I have is why "denies everything" and not "allows everything"
> for the new ACL?
>
>
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