Hello Kchitiz, If only called party or both are sending media is up the end-devices implementation - from SIP and SDP point of view there is no difference - both end points have the SDP of the other party, so both of them are able to send and receive RTP (if they want). But be careful of the sendonly / recvonly indications in SDP.
>From OpenSIPS + Media relay point of view there is no difference, it should work with a default NAT traversal script. Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer http://www.opensips-solutions.com On 05/16/2013 09:30 AM, Kchitiz Saxena wrote: > Hi > We are planning to have OpenSIPS working as a proxy in our network and > MediaProxy as media relay/proxy. > We have a requirement of early media which is a bit different from > general or usual early media concept. In my case, the calling party > and called party need to have a media path before the final answer for > following: > 1. Calling party should be able to send video stream and called party > should be able to receive the same before the called party send a > final response(2XX) for the INVITE (Lets say after 183) > 2. Both the parties should be able to send and receive audio streams. > > This is different from general early media used in IVR like system > where only called party sends audio stream to calling party. > > Is it possible to have this feature when OpenSIPS is acting as a proxy > in between and doing things like NAT traversal? Does OpenSIPS require > any special configuration/change to achieve this? > > Thanks > Kchitiz > > > _______________________________________________ > Users mailing list > Users@lists.opensips.org > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
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