Hi, you can simply use Kamailio and RTPProxy here. You simply can use rtpproxy_manage() in the request and in the reply; rtpproxy_destroy() in the Bye-Message. You must also use record_route() in order to have all subsequent requests going through your proxy. That should do your job.
May you want also to look at SEMS (iptel.org/sems) as an SBC. SEMS can do that as well, but additionally also teardown in case of RTP-Timeout, Codec Enforcement (e.g. only allow G711) and of course topology hiding. Kind regards, Carsten 2011/10/7 Austin Einter <austin.ein...@gmail.com> > > Dear Carsten > Thanks for reply. > > I did not install rtp proxy . I just installed kamailio after that I was > able to run both kamailio and rtp proxy. > I am surprised, I thought after installing kamailio 3.1.5, I will be able > to execute both kamailio and rtpproxy. > Not sure it it was installed in my lab pc by somebody else previously. > > First of all I would like to check if the scenario I am talking of is a right > case to use Kamalio or not. > > 1. I will be running the sip softphones in private/public network. > > 2. I want to run kamailio proxy in public network (as an intermediate proxy). > > 3. I will hav a main proxy in public detwork. > > What I want is all my signalling and RTP packets should pass through > intermediate proxy (that is Kamailio only). > > For this purpose do you suggest Kamailio or someother proxy/b2bua. > I am able to force SIP packets through kamailio proxy (by use of route stuff > in softphone). > > My main concern is when INVITE message pass through Kamailio, will Kamailio > proxy change the IP address of phone present in SDP to self address so that > media packets from called party side will come to kamailio proxy. > > Same concern otherway. Like when 200 OK to INVITE passes through kamailio, > will kamailio change IPaddress in SDP to self IP, so that media packets from > calling side will reach kamailio. > > Kindly help me to choose right proxy or should I look for b2bua. > > Thanks > Austin > > > > On Fri, Oct 7, 2011 at 3:05 PM, Carsten Bock <cars...@ng-voice.com> wrote: >> >> Hi, >> did you also install the RTPProxy itself? It is an addon to Kamailio and not >> a part of Kamailio. >> You find the RTPProxy here: www.rtpproxy.org >> Carsten >> >> 2011/10/7 Austin Einter <austin.ein...@gmail.com> >>> >>> Hi >>> I downloaded 3.1.5 Kamalio source, did make and install. Tried to run, and >>> tested few basic scenarios, everything working fine. >>> >>> I have a main proxy, want to use kamailio as intermediate proxy and my >>> requirement is all RTP packets should pass through machine in which Kamalio >>> proxy is running. I beleive RTP Proxy I can run in same machine where >>> Kamailio proxy is running with proper configuration . >>> >>> For this I am referring, >>> http://nil.uniza.sk/sip/nat-fw/configuring-nat-traversal-using-kamailio-31-and-rtpproxy-server page. >>> >>> In one of the steps it says "So, if we are using the Rtpproxy server with >>> default configuration, we have to open /etc/default/rtpproxy file and >>> uncomment following line regarding of udp socket, that will be sued for >>> interconnection:". >>> >>> I tried to search rtpproxy configuration file, could not locate. >>> While making and installing Kamalio proxy, the commands I used "make >>> prefix=/usr/local/ all and make prefix=/usr/local/ install". >>> Can somebody point me why rtpproxy config file is missing. >>> >>> Also the link I am refering to is correct or wrong one. >>> >>> Best Regards, >>> Austin >>> _______________________________________________ >>> 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 >>> >> >> >> >> -- >> Carsten Bock >> CEO (Geschäftsführer) >> ng-voice GmbH i. Gr. >> Schomburgstr. 80 >> D-22767 Hamburg / Germany >> http://www.ng-voice.com >> mailto:cars...@ng-voice.com >> Mobile +49 179 2021244 >> Office +49 40 34927219 >> Fax +49 40 34927220 >> Hier finden Sie unsere handelsrechtlichen Pflichtangaben: >> http://www.ng-voice.com/imprint/ >> >> _______________________________________________ >> 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 >> > > > _______________________________________________ > 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 > -- Carsten Bock CEO (Geschäftsführer) ng-voice GmbH i. Gr. Schomburgstr. 80 D-22767 Hamburg / Germany http://www.ng-voice.com mailto:cars...@ng-voice.com Mobile +49 179 2021244 Office +49 40 34927219 Fax +49 40 34927220 Hier finden Sie unsere handelsrechtlichen Pflichtangaben: http://www.ng-voice.com/imprint/ _______________________________________________ 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
