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Gines Gomez

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Transcript

  • 1. SIP APPLICATIONS
    • Developing SIP applications using OpenSER, WeSIP, HTTP and Java...yes you can !
      • SAN JOSE 17-3-2008
  • 2. WHY WOULD I NEED TO DO THAT ?
    • IMPRESS YOUR BOSS
    • FIND SOMETHING WEIRD FOR YOUR THESIS
    • EXPAND THE BOUNDARIES OF YOUR KNOWLEDGE BEYOND C (YES!! LIVE EXISTS BEYOND C!!)
    • CREATE RICH MULTIPROTOCOL DISTRIBUTED APPLICATIONS
  • 3. APPLICATION EXAMPLES
    • A JAVASCRIPT CLICK-2-CALL WITH REAL-TIME REPORT OF CALL STATUS
  • 4. APPLICATION EXAMPLES
    • A PREPAID SYSTEM WITH ASTERISK OR AN VXML MEDIA SERVER
  • 5.
    • A CALEA REAL-TIME INTERCEPTION SYSTEM
    APPLICATION EXAMPLES
  • 6.
    • A WEB 2.0 PBX SYSTEM
    APPLICATION EXAMPLES
  • 7.
    • THEY ALL HAVE IN COMMON THAT
    • ARE SOMEHOW COMPLEX APPLICATIONS
    • INVOLVE SEVERAL COMMUNICATION PROTOCOLS
    • AND SEVERAL SYSTEMS
    • “ DIVIDE AND CONQUER!!” it always results.
    • HERE IS WHERE WESIP COMES
    APPLICATION EXAMPLES
  • 8. WeSIP
    • WeSIP is a
    • SIP Application Server
    • built on top of OpenSER
  • 9. WeSIP
    • WeSIP adds a SIP Servlet programming layer to OpenSER
    • You can develop your services and applications using existing OpenSER modules (like nat_traversal,registrar,etc...)
    • ...while at the same time enjoying the java programming language facilities
      • Huge set of java libraries
      • SOAP,EJB,JDBC....
    • WeSIP helps you to integrate OpenSER with other systems and protocols enabling the offer of a new set services
  • 10. OpenSER SIP HTTP WeSIP J2EE environment (EJBs, Servlet, JNDI, JMX, JMS, etc) Low level, telephony-related functions: -Call Routing (LCR) -Access Control (ACL, Auth,etc.) -Accounting (Radius) -Nat Traversal -UsrLoc -Etc... usrs Application Logic B2BUA Web or SIP triggered PBX functionality (JAVA APIs) Trigger IVR Trigger Media Services Intelligent call routing Annoying (no! you're not!) Business Logic -Provisioning -Invoking thrid party services -Billing -(Accounting) -Statistics -... Architecture OTHER COMM PROTOCOL
  • 11. Architecture
    • OpenSER script: Domain Specific Language (DSL)
      • Hiper efficient
      • Call handling
      • Feature-rich: auth, acc, loc, lcr, radius, etc.
    • JAVA: General Purpose Language
    • SipServlet: SIP (& HTTP) Protocl Programming with Servlets
    • J2EE: Business Logic programming Environment.
  • 12. WeSIP OpenSER Integration
    • WeSIP – OpenSER Integration
  • 13.
    • OpenSER DSL
    • 1- Authenticate
    • 2-Account
    • 3-UsrLoc
    • 4-Nat Traversal
    • .
    • .
    • N-Invoke App-Server
    WeSIP OpenSER Integration
  • 14. SIP SERVLET
    • JAVA API!!
    • JUST LIKE SIP INHERITS PART OF ITS BEHAVIOUR FROM HTTP, SIP SERVLET PROGRAMMING IS SIMILAR TO HTTP SERVLET PROGRAMMING
    • DEFINED IN JAVA COMMUNITY STANDARD JSR116
    • NEW VERSION 1.1 DEFINED IN JSR289 COMING SOON
  • 15. SIP SERVLET PROGRAMMING MODEL
    • SIP SERVLET APPLICATIONS CONSIST OF SERVLETS RUNNING INSIDE A SERVLET CONTAINER
  • 16. SIP SERVLET PROGRAMMING MODEL
    • SERVLETS ARE WRITTEN IN JAVA AND TRIGGERED UPON RECEPTION OF REQUESTS AND RESPONSES
  • 17. SIP SERVLET PROGRAMMING MODEL
    • SERVLETS ARE WRITTEN BY THE PROGRAMMER TO IMPLEMENT BUSINESS LOGIC WITH LOW PROTOCOL KNOWLEDGE REQUIRED
    • PROGRAMMERS USE CONTAINER RESOURCES
      • SIP Resources
        • Message creation reception and delivery
        • Transaction Managemet
        • Dialog Management
        • Parallel/Sequential Proxying
      • J2EE JNDI Resources
        • Database Pooling
        • Resource references
        • Environment entries
  • 18. WeSIP site
      • WWW.WESIP.EU
    • Download (Free for non-commercial uses)
    • Tutorial
    • Sample Applications
  • 19. THANK YOU
    • Thanks for your time!!!
    • More questions ??
    • [email_address]