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Besturing van RealTime IP Communicatie en IMS

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Besturing van Real-Time IP Communicatie en IMS. 2. Contents. Hype, Buzz and Confusion. KPN's view on IMS. Get Real, IMS has value, .. ..but simpilicity rules! ... – PowerPoint PPT presentation

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Title: Besturing van RealTime IP Communicatie en IMS


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(No Transcript)
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IMS Walled In or OpenDoes the Open IMS exist?
  • Spring 2006 VON Europe (361)

Colin Pons May 18, 2006
3
Contents
  • Hype, Buzz and Confusion
  • KPNs view on IMS
  • Get Real, IMS has value, ..
  • ..but simpilicity rules! ..
  • ..however mobile?

IMS Walled In or Open?
May 18, 2006
4
Statements like keep in control fuel heated
debates.and with good reason
IMS portrayed by Telcos as Defense against
Internet Services, perceived as the IP/Internet
Monetizing System by others
May 18, 2006
IMS Walled In or Open?
5
Getting the significance of IMS right
  • The telco industry holds a conservative vision of
    SIP and IMS, analyzing their characteristics
    through the prism of legacy telco technologies.
  • However SIP focuses on enabling service delivery
    by third parties
  • Multimedia may include voice, video, voice bursts
    (push-to-talk), messaging, gaming, application
    sharing, shared browsing, whiteboard
  • Media types can be added, removed or replaced at
    any time in the session
  • ... and between peers
  • Devices (in same or different operators domain)
  • Devices and application servers (in same or
    different operators domains)
  • Application servers (in same or different
    operators domains)

IMS Core
May 18, 2006
6
SIP is already complex enough, lets not
complicate matters even more Keep It Simple,
Stupid
  • Not all of IMS
  • Seperated routing database and authentication
    HSS
  • SIP Proxy connected to this database (S-)CSCF
  • Depending on access network a P-CSCF/PDF (mobile
    access)
  • Interconnect MGCF/MGW

KPN design principles and design guidelines
states no service intelligence shall reside in
the IMS Core elements.
IMS Walled In or Open?
7
Where does IMS fit, naturally?
KPN Strategy Making Internet even more
significant for our consumers
Voice Only Applications
  • Identity management
  • Presence location
  • User preferences and profiles mediation
  • Service and Personal Mobility
  • This calls for Preserve the E2E principle

Real-Time IP Communication Applications
IPTV, VoD
Email, etc
VoIP, PSTN Emu
IM, etc

Apps
IPTV Apps
SIP Apps
SIP Apps
Web Apps
ISP Core
IPTV Core
IMS Core
Transport IP/Ethernet
DSL
Fiber
WiFi
WiMAX
GPRS
UMTS
IMS Walled In or Open?
May 18, 2006
8
But this is not the end-gameso, whats next
  • P2P SIP
  • Operators can still be around to provide Identity
    Management, Trust, preference/profile mediation,
    etc
  • IMS is transitional technology. But are not all
    technologies?
  • WiFi/SIP enabled phones
  • UMA is a dead-end. It does not allow service
    convergence. It extends the Mobile Radio
    Interface over Fixed Broadband.
  • Ubiquitous Access and Transport
  • Unfettered Access to (Internet) applications
    is Good Business, although access and transport
    are commodity.
  • Mesh Networks
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