Kamailio World 2017: Getting Real with WebRTC

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Getting Started with WebRTC
Chad Hart, Voxbone

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2
ABOUT ME
Head of Strategic Products
https://www.voxbone.com
cwhart@voxbone.com
A blog for WebRTC developers
https://webr...

3
So what is WebRTC?

4
HAVE YOU MADE A CALL WITH ONE OF THESE APPS?

5
IF NO, THEN YOU HAVE DEFINITELY WORKED WITH THESE

6
How did we get here?

7
MEDIA ENGINE
VIDEO CODEC
AUDIO CODEC
WORLD CLASS VOIP ENGINE FOR FREE

8
INTERNET & WEB STANDARD

9
Peer-to-peer
RTC
connectivity
peerConnection
Arbitrary p2p
data
transmission
dataChannel
Stream
Capture
getUserMedia
Cam...

10
.org
Too many projects to put on a slide
MASSIVE COMMUNITY

11
• 2 Billion+ WebRTC Browsers
• 1 Billion+ minutes/week
• 950+ companies & projects
• 5 Billion+ WebRTC app downloads
WE...

12
WEBRTC IS WINNING

13
400 million monthly active users
4 years since launch

14
WEBRTC WILL MAKE YOU RICH?
source: http://www.transparencymarketresearch.com/webrtc-market.html

15
THE MATH
source: googlesource: BlogGeek.Me
source: TMR
÷ ÷
= =
$901,971 / person $ 11,273,684 / vendor

16
$0Brevenue:
Reality: the largest WebRTC user makes no money from WebRTC. Most
of the largest WebRTC app monetize WebRTC...

17
source: http://www.transparencymarketresearch.com/webrtc-market.html
Reality: Unfortunately WebRTC probably wont make y...

18
YOU NEED TO DO WEBRTC ANYWAY

19
Media negotiation
Firewall/NAT Traversal
Audio codecs
Video codecs
Real-time flow controls
Encryption
WHY WEBRTC?
BETTE...

20
WHY WEBRTC?
YOUR USERS DEMAND BETTER EXPERIENCES

21
DON’T DEFAULT TO THE SAME OLD USER EXPERIENCE
Source: http://www.publicdomainpictures.net/view-image.php?image=25044&pi...

22
Where to start?

23
JavaScript is easy enough to start with
https://webrtc.github.io/samples/

24
MANY GUIDES AND SAMPLES
Blogs Code Videos Forum
webrtcHacks
BlogGeek.Me
blog.mozilla.org/webrtc/
rtcbits.com
codelabs.d...

25
Signaling:
WebRTC is not 100% Peer-to-Peer
media

26
Session Description
Protocol (SDP)
WebRTC uses Session
Description Protocol (SDP) to
negotiate media parameters
Source:...

27
SDP
There is a large continent in the WebRTC
community that thinks SDP is evil. They have
*very slowly* won, so expect ...

28
Many ORTC objects are already in WebRTC 1.0
PeerConnection
.getSenders()
.getReceivers()
// Name TBD
.addTransceiver(ki...

29
SIGNALING
Old-school Way
Often the first and fastest route to
WebRTC for “telephony” people was to
use SIP over WebSock...

30
WHAT’S BEST FOR YOUR PHONE IS NOT WHAT’S
BEST FOR YOUR BROWSER
≠

31
WHAT’S BEST FOR YOUR PHONE IS NOT WHAT’S
BEST FOR YOUR MOBILE APP
≠
Main concerns: load time, latency,
background behav...

32
JUST ASK ONE OF THE ORIGINAL SIP AUTHORS

33
SIGNALING
Modern Way
The market has proven that a JSON
signaling approach is both practical
and more effective.

34
Make Your own Server
Simple Socket.IO server:
• Only 32 lines
• No logic, it only forwards
messages
See more of César’s...

35
HOW TO GET/USE A SIGNALING SERVER
Ask your
CPaaS provider
Run your own
Use a
messaging
service
All include signaling Wr...

36
NAT Traversal

37
A protocol for establishing a peer-to-peer media
connection between peers behind NAT and firewall
devices.
Interactive ...

38
Get A STUN & TURN Server
Run your
own
Use a TURN
service
coturn
restund
Numb
Frozen Mountain
EyeBall Networks
Xirsys
Tw...

39
So WebRTC’s perfect?

40
Let’s talk about browser support

41
Vendor Google Microsoft Mozilla Microsoft Apple
Browser Chrome Internet Explorer Firefox Edge Safari
Desktop 💚 ⛔ 💚 💚 ⛔
...

42
Apple has been the worst for WebRTC

43
Safari
Other Browser Apps
on iOS
WebView
for iOS
No support for desktop or
mobile
70% of usage on iOS
No support for ea...

44
Vendor Google Microsoft Mozilla Microsoft Apple
Browser Chrome Internet Explorer Firefox Edge Safari
Desktop 25% 10% 5%...

45
HOW FACEBOOK HANDLES BROWSERS
WITHOUT WEBRTC
This is what happened when I tried to make a Messenger call with Safari wh...

46
HOW FACEBOOK HANDLES BROWSERS
WITHOUT WEBRTC
They have since hidden the feature on non-WebRTC browsers, but still
recom...

47Image source: https://farm3.static.flickr.com/2540/4094662593_5e8e6d917b_b.jpg
So should we give up on Apple?

48
APPLE SUPPORT IS COMING, EVENTUALLY…
No one outside of Apple knows
exactly when or how they will
introduce WebRTC, but ...

49
CHROME WILL BREAK YOUR IMPLEMENTATION
Chrome likes to move fast and break things. If you don’t
move with them they will...

50
Insider Preview
(slow)
Insider Preview
(fast)
TEST EARLY, TEST OFTEN, & FIX THINGS Leverage the Beta, Developer, and ”i...

51
YEAH, YOU NEED TO BE PREPARED As long as you pay attention and are willing to do
sustaining development, browser change...

52
DON’T IGNORE NATIVE MOBILE APPS
This is a huge topic. No time here, but don’t disregard
native mobile. The majority of ...

53
WEBRTC TO DO LIST
CLIENT
SUPPORT
RTC
Architecture
Front-end Backend-end
Cloud
Environment
Ops
Test &
monitoring
• WebRT...

54
Do you really want to make cheaper phone calls
for the rest of your career?
Me neither!

55
NEW FORMS OF REAL TIME COMMS ARE COMING
Gaming
Virtual Reality
RoboticsReal time streaming
The good news is that WebRTC...

THANK YOU
@voxbone blog.voxbone.com
www.voxbone.com company/voxbone /voxboneSA/

57
QUIZ TIME
Raspberry Pi 3 Belgian Chocolates

58
1. What is your favorite colour?
2. What are the 2 primary standards bodies for WebRTC?
3. How many RTC subscribers doe...

THANK YOU
@voxbone blog.voxbone.com
www.voxbone.com company/voxbone /voxboneSA/

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