building a webrtc communication and collaboration platform - techleash barcamp

Altanai Bisht

Telecom Research & Development

[email protected]

http://altanaitelecom.wordpress.com

Unified Communication & Collaboration

What is the big deal with WebRTC ?

4/19/2015 Altanai Bisht . website:http:// altanaitelecom.wordpress.com 2

Provides Multimedia communication through browser API’s alone

No custom software , hardware

No plugin , installations , extensions

Standardized by W3C and IETF

IETF RTCWeb WG ( Internet world, IP protocols)

W3C WebRTC WG (web world, Browsers etc.)

Supported Browsers

Chrome Firefox Opera

Supported Mobile Platforms Android iOS

How does WebRTC Call work ?

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Signal

Web Server/service based signaling brokering

Offer/Answer JSEP ( Java Session Establishment Protocol ) model with SDP ( Session Description Protocol )

protocol NOT defined

Media

Peer to peer media flow

SRTP/RTCP

Firewall and NAT/NAPT

Uses ICE for STUN / TURN mechanism

Browser Browser

Media Path

Signal Path Signal Path

Signalling server

Altanai Bisht . http:// altanaitelecom.wordpress.com

Agenda for discussion today

How to build WebRTC Comm. ?

Signalling Protocol

Infra.

Integration

Where can I use WebRTC ?

Usecases

Comm. and Collaboration



• Signalling Protocol • Infra. • Integration


• Usecases • Comm. and Collaboration


Signalling Protocol

WebRTC can utilize any web transport and has no specified signalling mechanism .

•JSON •REST •SIP over Websocket •Proprietary signalling •Any other HTTP based signalling






Infrastructure ..1

Signalling Server

CSS

WebRTC

JS Media Path

p2p

Signalling Path

WebSockets

CSS

WebRTC

JS

WebSockets

@altanai






Infrastructure ..2

Signalling Server

CSS ( Bootstrap)

WebRTC media

stack + JS API

JS ( Angular ,

JQuery ....)

Media Path

p2p

Signalling Path

WebSockets WebSockets

Amazon Ec2

Nodejs socketio server

TURN Server

Redis , MySQL , Mongo

HTTPs for screen

sharing

CSS ( Bootstrap)

WebRTC media

stack + JS API

JS ( Angular ,

JQuery ....)

@altanai

4/19/2015 8





Infrastructure ..3

WSSIP to SIP Signalling

server ( proxy)

Session Management

Media Server ( Transcoding

codecs)

Media

WebRTC Signalling

I-SBC ( Session Border

Controller )

UE

IMS Network Operator

IMS

Media

IMS /NGN core

Telecom Application

Server

Signalling Server

CSS

WebRTC media stack + WS SIP

API

Web Project Framework ( Spring

, struts )

WebSockets

Amazon Ec2

Apache tomcat / JBOSS WEB

Server

TURN Server

Web Project Database (

Postgress , MySQL

HTTPs for screen sharing


@altanai






Use-Cases


Personal Use

Business Communication

4/19/2015 Altanai Bisht . http:// altanaitelecom.wordpress.com 10





Use-Cases


Healthcare

Call Centre communication






Use-Cases


Rpi

IoT






Communication & Collaboration

TFX WebRTC widget based platform

https://chrome.google.com/webstore/detail/tfx-sessions/aochimdcllmgleokpnlabijehdlmkdga

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WebRTC widget based platform Container Chrome Extension







4/19/2015 14

Flexible Developer friendly

Immersive Experience







Shameless Self Promotion


https://www.packtpub.com/web-development/webrtc-integrators-guide

Extra Concerns , Legal Issues and Market analysis


Concerns ?


Firewall / policies blockage NAT issue is major ICE is complicated

setup own STUN or TURN server

Security SRTP / web breaker / DTLS too much and too ambiguous for a developer

No one talking about - SPAM control / Unwanted call screening / risk mitigation

RTP stream multiplexing RTP + RTCP

Conferencing involves Multiple RTP streams. No standard network topology to work

Interworking Simple to call between WebRTC bowers ( full audio and video )

Confusion on integration with OTT solutions (Skype, Viber, Google Jingle , XMPP etc.)

SBC ( Media transponders and Proxy servers ) have demonstrated interworking with NGN/IMS

More clarity required on integration with legacy PSTN and PLMN . Even GSM / UMTS as they have different number formats ( ENUM can be used ) ISUP and legacy codecs .

Legal Issues ?


Who is hosting the comm platform?

Identity resolution for authentication?

Detecting the service man-in-the-middle attacks

Network sniffing ( users location , device and call activity )

Lawful interception required in many Organizations

Session Replay

Media Interception Tough to track where is signal passing through in IP network?

Media Encryption (DTLS) Who has the keys ?

Media Server employed to force relays adding to complexity

RTP multiplexing is hugely a black box

WebRTC Trends


Source : Webrtcstats.com

WebRTC Support chart

4/19/2015 Altanai Bisht . http:// altanaitelecom.wordpress.com 22 Source : iswebrtcreadyyet.com

Thank you


building a webrtc communication and collaboration platform - techleash barcamp

Technology

signalling protocol

http based signalling

specified signalling

defined media peer

web transport

signal web serverservice

mysql https

browser apis