Traffic from any particpant sent to the multicat group address reaches all other partcipants Source-Specific Multicast (SSM) Point to Point using Multicast Any-Source Multicast (ASM) (-) It can be subjected to MIM attack or have a backdoor to eavesdrop on conversations (+) B2BUA / media bridge take responsibility tpo relay and manages congestion Takes complete responsibility of forwarding the correct RTP payload and maintain the relation between the SSRC and CNAMEs Advantages of Back-To-Back RTP Sessionĭisadvantages of Back-To-Back RTP Session Mostly like middlebox like translator but establishes separate legs RTP session with the endpoints, bridging the two sessions. In many cases it can also act on behalf of non-RTP supported endpoints, receiving and responding to feedback reports ad performing FEC ( forward error corrected ) Back-To-Back RTP Session
#INSTALL UNIVERSAL MEDIA SERVER ON UBUNTU SERVER 12.04 FULL#
It can do up to full encoding/decoding of RTP streams. Modifies the media inside of RTP streams commonly known as transcoding. Media packetization to allow other media to connect to the session like non-RTP protocols Media translator Interconnecting networks like multicast to unicast Other SBC ( Session Border Gateways) like characteristics are also part of this topology setup Transport translator Middleboxes for auditing or privacy control of participant’s IP Roles like NAT traversal by pinning the media path to a public address domain relay or TURN server Subtypes of Multibox : Transport/Relay Anchoring This does not use an SSRC of its own and keeps the SSRC for an RTP stream across the translation. Mostly used interoperability for non-interoperable endpoints such as transcoding the codecs or transport convertion. Same as above but with a middle-box involved. (-) Only limitaion to number of stream between the partcipants are the physical limiations such as bandwidth, num of available ports (+) Facilitates private communication between the parties RTP and RTCP tarffic is private between sender and reciver even if the endpoints contains multiple SSRC’s in RTP session. Point to PointĮndpoints communicating over unicast. This article is about media server setup to provide mid to high scale conferencing solution over SIP to various endpoints including SIP softphones, PBXs, Carrier/PSTN and WebRTC. Here is my advice if you are building a auto- scalable conferencing solution With the sudden onset of Covid-19 and building trend of working-from-home, the demand for building scalable conferncing solution and virtual meeting room has skyrocketed. Audio PCAP storage and Privacy constraints for Media Servers.Point to Multipoint Using Video-Switching MCUs.Hybrid model of forwarding and mixed streamings.
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