Making the Right Signalling Choice
Session: D1-3
Erik Linask
Group Editorial Director
TMC
ELinask@tmcnet.com
Session Presenters
• Peter Dunkley
–

–

Technical Director
Crocodile RCS Ltd

• Steven Northridge
–

Director SDP Product...
Peter Dunkley
Technical Director
Crocodile RCS Ltd
peter.dunkley@crocodile-rcs.com
Signalling Options
• Signalling is required to discover endpoints to
communicate with
• There are many options
• Proprieta...
Open standards are usually best
• Promotes interoperability
• Many years of development have solved most
resilience and sc...
SIP has many advantages
• Less complicated than most people think
• The widest used, standard, session initiation protocol...
Steve Northridge
Director SDP Product Marketing
Oracle
steve.northridge@oracle.com
WebRTC Landscape
RTC becomes part of
the Web experience

Existing communications
extended to the Web

Interoperate

Commun...
Signaling Options
• REST API
• Client/Server not Bidirectional
• XMPP/Websockets
• XMPP – IETF standard
• Jingle
• Draft e...
Striking the Balance
• Server to Server
• SIP
• Standards based
• Widely accepted / used
• Enables Interoperability
• Serv...
Erik Lagerway
Co-founder
Hookflash
erik@hookflash.com | @hookflash
Problemcommunicate with Alice when they are on different networks?
How does Bob
Bob:
linkedin.com/in/bob.burns
phone:1-905...
Solution
Federated Identities

P2P Signaling

Social, Local, or even 3rd party identities are mapped via
Open Peer, allowi...
Open Peer
OTT (Over The Top) has already won
• Open Peer = P2P, no server for signaling (unlike SIP, XMPP, Jingle, etc)
• ...
Questions
1. What are the critical factors to consider when choosing a
signalling protocol?
2. What are the relative capab...
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WebRTC Conference and Expo (May 2013) - Making the Right Signalling Choice

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A presentation by Erik Linask (Group Editorial Director, TMC), Peter Dunkley (Technical Director, Crocodile RCS Ltd), Steven Northridge (Director SDP Product Marketing, Oracle), Erik Lagerway (Co-founder, Hookflash). Presentation date 25-Jun-2013.

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WebRTC Conference and Expo (May 2013) - Making the Right Signalling Choice

  1. 1. Making the Right Signalling Choice Session: D1-3 Erik Linask Group Editorial Director TMC ELinask@tmcnet.com
  2. 2. Session Presenters • Peter Dunkley – – Technical Director Crocodile RCS Ltd • Steven Northridge – Director SDP Product Marketing Oracle • Erik Lagerway – – Co-founder Hookflash
  3. 3. Peter Dunkley Technical Director Crocodile RCS Ltd peter.dunkley@crocodile-rcs.com
  4. 4. Signalling Options • Signalling is required to discover endpoints to communicate with • There are many options • Proprietary – – – RESTful BOSH WebSockets • Standards based – – XMPP over BOSH/WebSockets SIP over WebSockets
  5. 5. Open standards are usually best • Promotes interoperability • Many years of development have solved most resilience and scaling problems – – SIP: ~17 years of development XMPP: ~14 years of development • Stand on the shoulders of giants • Existing server infrastructure can be reused with little or no modification • Usually many open-source options to get started with
  6. 6. SIP has many advantages • Less complicated than most people think • The widest used, standard, session initiation protocol in the world • Many open-source SIP over WebSocket implementations, including – – Servers: Asterisk, Kamailio, OverSIP, reSIProcate Clients: jain-sip.javascript, JsSIP, QoffeeSIP, sipml5 • SDP and SIP work well together
  7. 7. Steve Northridge Director SDP Product Marketing Oracle steve.northridge@oracle.com
  8. 8. WebRTC Landscape RTC becomes part of the Web experience Existing communications extended to the Web Interoperate Communications islands interoperate
  9. 9. Signaling Options • REST API • Client/Server not Bidirectional • XMPP/Websockets • XMPP – IETF standard • Jingle • Draft extension to XMPP • Variation used by GoogleTalk • SIP • SIP – IETF standard • Used by SIP phones • JSON/Websockets • Applications can define their own communications between the broswer and server INTEROPERATE SIGNALING BROWSER SIGNALING WEB SERVER (WEBRTC CONTROL) WEB SERVER (WEBRTC CONTROL) PEER CONNECTION (AUDIO, VIDEO, DATA)
  10. 10. Striking the Balance • Server to Server • SIP • Standards based • Widely accepted / used • Enables Interoperability • Server to Browser • JSON/Websockets • Allows Application Flexibility • Promotes Innovations • SIP/Websockets • Allow existing SIP applications to seamlessly extend to the Web Innovation Interoperability INTEROPERATE SIGNALING BROWSER SIGNALING WEB SERVER (WEBRTC CONTROL) WEB SERVER (WEBRTC CONTROL) PEER CONNECTION (AUDIO, VIDEO, DATA)
  11. 11. Erik Lagerway Co-founder Hookflash erik@hookflash.com | @hookflash
  12. 12. Problemcommunicate with Alice when they are on different networks? How does Bob Bob: linkedin.com/in/bob.burns phone:1-905-555-1111 email:bob@email.com Alice: . Bob’s logged in via Alice is logged in via 1-604-555-1212 Bob is connected with Alice via 1-604-555-1212 12 facebook.com/alice.alberts linkedin.com/in/alice.alberts twitter.com/alice domain.com/alice phone:1-604-555-1212 email:alice@domain.com .
  13. 13. Solution Federated Identities P2P Signaling Social, Local, or even 3rd party identities are mapped via Open Peer, allowing disparate users to locate each other no matter what Identity they are currently using. Finder Finder Identity Lookup Identity Lookup 1-604-555-1212 Peer Peer Signaling & Media - Initiating - Ringing - Connecting - In Progress - Disconnect - Transfer - Hold - Conference - Join - Split - Hand-off - Send file - Poke - Kick - Ban Add yours here ^^
  14. 14. Open Peer OTT (Over The Top) has already won • Open Peer = P2P, no server for signaling (unlike SIP, XMPP, Jingle, etc) • Open Peer is a complete solution purpose-built for real-time p2p communications • Open Peer will soon be WebRTC Interoperable (eg. http://webrtc.hookflash.me) Security • All communication (signaling and media) is encrypted P2P • Servers do not know encryption keys • No man-in-the-middle attacks • Identity Assertion/Validation Open • Open Specification: OpenPeer.org • Open Source (iOS, BB10, JS / Browsers, android): Github.com/OpenPeer/ Supported by premium cloud service providers (eg. Hookflash) • Identity Lookups & Mapping, Presence, STUN/TURN, Enterprise Analytics
  15. 15. Questions 1. What are the critical factors to consider when choosing a signalling protocol? 2. What are the relative capabilities of each signalling choice? 3. Should you consider changing the signalling you use based on circumstances? 4. Are there any issues with specific signalling choices? 5. Why shouldn't we all just use SIP? 6. If I am just doing a triangle and not interfacing to other servers is the choice easier?

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