Integration Aspects of Mobile Internet Strategies Stipe Tolj, Chief Systems Architect, Kannel Software Foundation

Introduction: Some fast facts

Introduction to Stipe Tolj Systems Architect Master Degree in Information Management, Computer Science and Economics University of Cologne, Germany CSO at Wapme Systems AG Scaling a three person start-up to IPO at TecDAX stock exchange in four years with a market cap of 80 Mio. Euros Open Source Evangelist 1993-present-and-always-will-be Apache HTTP server since apache-1.2b6 PHP since php/fi-2.x MySQL since mysql-3.21 Kannel since 1.1.x Based in Düsseldorf, NRW, Germany

Introduction to Kannel Kannel: Open Source WAP and SMS Gateway Officially founded in June 1999 by Wapit Ltd., Helsinki, Finland Original Architect: Lars Wirzenius room mate of Linus Torvalds World’s first certified WAP 1.1 gateway by The Open Group World’s most used SMS gateway est commercial deployments Approximately 2000 subscribers to all mailing lists Extremely fast, reliable and modular pure C with pthreads SMS gateway parts abstract SMSC protocols to a “known” transport protocol SMPP 3.4, UCP/EMI 4.0/3.5, CIMD 1.37/2.0, OIS 5.0, SM/ASI, GSM modems, HTTP APIs  HTTP/1.1 WAP gateway parts WAP stack implementation WDP, WTP, WSP, WML Push Proxy Gateway (PPG) i.e. used for MMS notification or SI

Telecom goes Open Source The industry participants start to realize that the “open standards” model is the way to go Learning from the past evolution of IP based protocols (IETF, W3C) Numerous standardizing bodies evolve WAP Forum, OMA, OHA Again: openness is not “pushing” a standard, it is consensus Is Android a successor of the Symbian model, or a competitor? Operators: Giving up control does not mean defeat Open systems raise innovation and usage of the network Internet Innovators force the Telecom business to adopt the “openness model” Google lobbying the FCC Open applications, open devices, open services, open networks

Mobile Internet Understand what the Mobile Internet is It is not a second-dimension system beside the landline Internet It’s a subset of it the “overall Internet” It’s a network segment, demanding the same services, delivering to the same users Device capabilities have been driving separation i.e. WML vs. full featured HTML for content presentation Standard bodies are pushing back in order to focus on media convergence Result: IMS IP Multimedia Subsystem 3GPP and OMA  open networks?

IP Multimedia Subsystem (IMS) Designed to evolve mobile networks beyond GSM First 3GPP approach was based on GPRS bearer Later abstractive approach for additional bearers Integration with the Internet using IETF protocols Session Initiation Protocol (SIP) and way more SIP related protocols Diameter, RADIUS, HTTP Digest for AAA Real-time Transport Protocol (RTP) ENUM Again: it’s a subsystem Integration to the overall Internet system is achieved widely by using existing known protocols  gluing horizontally and vertically

IP Multimedia Subsystem (IMS) (2) IMS Architecture Overview

Integration Aspects While openness increases vertically layer/stack APIs Semantically separation of data and signaling gets more relevant A lot more signaling takes place then pure data transmits State control and state awareness User context while being mobile Users have different contexts Presence  IMPS (XMPP) vs. SIMPLE Location Based Services  who owns the location information?

Status Quo vs. Scenario X Mobile Internet market revenues are below potentials Technical obstacles and concern network capabilities Inadequate marketing and packaging of services Potential Mobile Internet Market Revenue Source: Yankee Group, 2007

Last (famous) Words Telecom industry has to understand that the Mobile Internet has to be as openly accessible as the World Wide Web is. Keeping focused on the integration aspects and preserving openness to the overall system ensures growth. “Openness in the Mobile Internet means enlarging the pie.” Tim Berners-Lee (W3C)

An eComm 2008 presentation – for more