Your proposed solution is fine and is employed by many of us in the OpenSER/Kamailio community in production environments.
Mark At 03:23 p.m. 17/03/2009, you wrote: >Alex, I understand your point and appreciate your input highly, but >let's say that asterisk is needed as the media server for other >reasons. It may not scale as well as the other solutions but we need >them to be there to provide other services. I just wanted to know >whether there was any difference aside from the scalabilty issue. > >We were under the impression that it was imperative to use either >media-proxy or rtp-proxy but after examining in more detail how the >2 solutions work we find no reason not to use asterisk as the media >proxy as well. Unless of course we are missing the big picture here >and surely will find out once we set out to test it. But given the >deep knowledge of a lot of people in this forum we deemed necessary >to ask about the feasibility of this workaround. >If somebody detects any flaw on this solution or if there is >someting else critical or not that we are missing we would love to hear it . > >thank you in advance and thank you Alex again, >jp > > >----- Original Message ---- >From: Alex Balashov <abalas...@evaristesys.com> >To: Juan Perez <jperezsip2...@yahoo.com> >Sent: Monday, March 16, 2009 6:51:34 PM >Subject: Re: [Kamailio-Users] Using Asterisk as media server > > >No, because the amount of throughput you get per media/RTP proxy is much >higher than you would get through something whose entire core is structured >to behave as a PBX, with all the attendant features and latent event loop >characteristics. A media relay does one thing and one thing only, and it >does it well. Asterisk does many things, among them media relay. > >So, while you could use Asterisk in this capacity, I don't see the point. >It'd be a waste of time. Also, you don't really want to get Asterisk >involved in the signaling layer (as a B2BUA) if you can help it. It >introduces unnecessary complexity and possible points of interop problems >and failure. With a media relay that is controlled by API hooks into >Kamailio, you don't have that problem. > >On Mon, 16 Mar 2009 15:22:27 -0700 (PDT), Juan Perez ><jperezsip2...@yahoo.com> wrote: > > > > thanks alex, but actually there will be several asterisk servers, managed > > by the LCR module, that should be OK right? > > it should be the same as adding several media-proxies or rtp-proxies, am >I > > wrong? > > > > > > > > > > > > > > > > ----- Original Message ---- > > From: Alex Balashov <abalas...@evaristesys.com> > > To: Juan Perez <jperezsip2...@yahoo.com> > > Cc: users@lists.kamailio.org > > Sent: Monday, March 16, 2009 3:41:46 PM > > Subject: Re: [Kamailio-Users] Using Asterisk as media server > > > > No, nothing needs to be modified. > > > > However, in this scenario you are limited to Asterisk's performance > > characteristics in terms of the number of concurrent calls that can be > > handled. Just about any media relay will be much more scalable and > > lightweight. > > > > Asterisk is a PBX and a nice feature server. You don't build SIP service > > delivery platforms out of Asterisk used as a general-purpose call router. > > > > Juan Perez wrote: > > > >> Hello > >> > >> In this scenario, customers behind NAT register in kamailio, records are > > stored in a db etc. Kamailio uses Asterisk boxes as gateways to send >calls > > to PSTN. > >> Is it possible to use Asterisk as the media server instead of > > media-proxy or rtp-proxy? > >> In this case the SDP that Asterisk sends in the 180 message needs to me > > modified? > >> > >> thank you > >> jp > >> > >> > >> > >> > >> _______________________________________________ > >> Kamailio (OpenSER) - Users mailing list > >> Users@lists.kamailio.org > >> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users > >> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users > > > > > > -- Alex Balashov > > Evariste Systems > > Web : http://www.evaristesys.com/ > > Tel : (+1) (678) 954-0670 > > Direct : (+1) (678) 954-0671 > > Mobile : (+1) (678) 237-1775 >-- >Alex Balashov >Evariste Systems >Web : http://www.evaristesys.com/ >Tel : (+1) (678) 954-0670 >Direct : (+1) (678) 954-0671 >Mobile : (+1) (678) 237-1775 > > > > > >_______________________________________________ >Kamailio (OpenSER) - Users mailing list >Users@lists.kamailio.org >http://lists.kamailio.org/cgi-bin/mailman/listinfo/users >http://lists.openser-project.org/cgi-bin/mailman/listinfo/users _______________________________________________ Kamailio (OpenSER) - Users mailing list Users@lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
