I added the #!define WITH_NAT option, and now the call can only be made one way. RTPProxy was started like so:

$ rtpproxy -l 192.168.1.101 -s udp:localhost:7722 -u kamailio

root@kamailioA:~# netstat -pln | egrep "kamailio|rtpproxy"

tcp 0 0 192.168.1.101:5060 0.0.0.0:* LISTEN 10112/kamailio

tcp 0 0 127.0.0.1:5060 0.0.0.0:* LISTEN 10112/kamailio

udp 0 0 192.168.1.101:5060 0.0.0.0:* 10081/kamailio

udp 0 0 127.0.0.1:5060 0.0.0.0:* 10081/kamailio

udp 0 0 127.0.0.1:7722 0.0.0.0:* 10042/rtpproxy

raw 0 0 0.0.0.0:255 0.0.0.0:* 7 10081/kamailio

unix 2 [ ACC ] STREAM LISTENING 33357 10102/kamailio /var/run/kamailio//kamailio_ctl

My full config is at https://gist.github.com/ticklingcontest/e315972c80c82f6dfa23920c7725d60b

BTW, my entire setup, kamailio, asterisk and the phones etc. are in one private network. I think setting realtime endpoint with "direct_media=no" is pointless as all of these interactions are fronted by Kamailio.

What's going on here? Any help is appreciated.

On Wed, Jul 27, 2016 at 10:15 AM, Daniel Tryba <d.tryba@pocos.nl> wrote:

On Wed, Jul 27, 2016 at 01:54:07AM -0400, SamyGo wrote:
> You need to enable NAT handling in your Kamailio (#!define WITH_NAT), then
> depending upon how your clients will interact with asterisk you may or may
> not need a media proxy, like RTPproxy. If asterisks can send/receive media
> directly from the internet then its ok for now, else you definitely need to
> have rtpproxy/rtpengine in there.

I'd suggest to use rtpengine for all calls, it fixes most problems and
uses nearly no resources (with the kernel plugin)

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