thanks for fas reply. If I may user rtpengine as rtpproxy maybe you already use it or just know - does rtpengine provide ridge mode as rtpproxy between internal and external interfaces? At my instalne if I add rtpengine --ip=my.ext.net.addr/my.int.net.addr It shows that ip if wrong, but I neet proxy rtp between interfaces. Thanks.

2014-07-03 13:02 GMT+04:00 Dani Kamailio dani.kamailio@gmail.com:

You can use rtpproxy-ng.so that is included (It does the conversion of SDP packets) with rtpengine media relay from Sipwise , the rtpengine.so is still a devel module.

Regards.

2014-07-03 10:38 GMT+02:00 Yuriy Gorlichenko ovoshlook@gmail.com:

...

Hello. I install kamailio 4.1.3 and it works fine. But I neen proxy DTLS SRTP to backend media servers through kamailio. rtpproxy no not work with dtls srtp? so I installed rtpengine but can not find rtpengine.so file for copiyng to kamailio modules directory.

Does anyone can install rtpengine as kamailio module?

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SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Ok. Thanks. I install 4.1.3 Kamailio and rtpengine as a daemon

rtpengine started as:

./rtpengine --ip=MY.PUB.IP.OF_Kam --listen-udp=127.0.0.1:7723 --listen-ng= 127.0.0.1:7724 --pidfile=/var/run/rtpengine.pid

Now I need to proxy rtp beween my clients and my asterisk then tow at the public Net and this interfaces addede to dispatcher

At my configuration at kamailio i do this modparam("rtpproxy-ng", "rtpproxy_sock", "udp:127.0.0.1:7724")

And for at routes to asterisk do this: route[TOASTERISK] { ds_mark_dst("P"); if(!ds_select_dst("1", "4")) { sl_send_reply("500", "Service Unavailable"); xlog("L_INFO","[$fU@$si:$sp]{$rm} No destinations available for $rd \n"); exit; }

xlog("L_INFO","[$fU@$si:$sp]{$rm} From Outside World to Asterisk Box $du\n"); rtpproxy_manage("cawei");

route(FINAL_RELAY); exit;

}

route[FROMASTERISK] { if(ds_is_from_list("1")){ rtpproxy_manage("cawie"); xlog("L_INFO","[$fU@$si:$sp]{$rm} Call from Media-Server Cluster\n"); sql_pvquery("ca", "select received from location where username='$tU'","$var(res)"); xlog("L_INFO","SQL query return {$var(res)} for {$tU}\n"); $du=$var(res); return 1; } return -1; }

route[FINAL_RELAY] { if (!t_relay()) { sl_reply_error(); } }

ar /var/log/syslog I see that rtpengine (as rtpproxy_offer) changing SDP c= at incoming connections from address of client to Public IP of Kamailio, and sucsessfully transfered this packet to asterisk and as rtpproxy_answer stay with no changes this address, so client and asterisk know that they must sent RTP packets tp kamailio for proxy rtp through kamailio.

I see only one warning

test rtpengine[3355]: Unknown flag encountered: 'symmetric'

after that i see at asterisk that it send RTP packets to kamailio (with "via ICE"), but I see no incoming RTPpackets.

One thing make me confused me - rtpproxy_offer (at TOASTERISK route) adds a=candidate with kamailio PUBLIC IP, I think that asterisk and client things that kamailioo is STUN server (that is not write).

So I have 2 questions after this: 1. What about flag? Why rtpengine does not know it? 2. How send write stun from kamailio to client and asterisk?

2014-07-03 23:46 GMT+04:00 Andrew Pogrebennyk apogrebennyk@sipwise.com:

On 03/07/14 16:42, Yuriy Gorlichenko wrote:

...

thanks for fas reply. If I may user rtpengine as rtpproxy maybe you already use it or just know - does rtpengine provide ridge mode as rtpproxy between internal and external interfaces? At my instalne if I

add

...

rtpengine --ip=my.ext.net.addr/my.int.net.addr It shows that ip if wrong, but I neet proxy rtp between interfaces. Thanks.

rtpengine does not support the bridge mode.

Regards, Andrew

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