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Voice over IP Challenges and Opportunities IP-Tel 2000 Berlin, Apr. 2000 Wilhelm Wimmreuter SIEMENS AG ICN SIB mailto: [email protected] Cold colours. Voice over IP Challenges & Opportunities. Warm colours. Introduction Towards converged Voice and data networks? Services

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Voice over IPChallenges and OpportunitiesIP-Tel 2000Berlin, Apr. 2000Wilhelm WimmreuterSIEMENS AG ICN SIBmailto: [email protected]


Voice over ip challenges opportunities l.jpg

Cold colours

Voice over IPChallenges & Opportunities

Warm colours

  • Introduction

    • Towards converged Voice and data networks?

    • Services

  • Challenges

  • Opportunities

  • Evolution of Networks


Towards converged voice data networks l.jpg

POP

POP

R

POP

Internet

POP

POP

POP

R

R

LE

LE

POP

TE

POP

R

ATM

SDH

ATM

SDH

LE

TE

LE

LE

LE

Telephony & Internet

TE

LE

TE

LE

Telephony

Cold colours

Towards Converged Voice & Data Networks

Warm colours

Convergence:

  • Provides shared Access, Transport, and Services

  • Shared Resources reduce Costs for Management of Networks & Services

  • New Services and their Global Distribution; Voice & Data

  • End Users have Services at their Fingertips from Anywhere in the World


Voip driving services l.jpg

Cold colours

VoIP Driving Services

Warm colours

  • IP-Telephony is lurking around the corner, waiting for integration

    • IP Phones / Workstations, CO, PABX ...

    • IP Conferencing, Call Centers

    • IP Telephony services; Call Waiting Internet ...

    • IP Collaborative Work... And others to be invented

  • Always - On: Enables a potential paradigm shift, providing the possibility to purchase different levels of network bandwidth as needed, whilst always being connected.

  • Combining new with existing technologies for the transitional phase to a fully deployed IP network, by using, for example PINT

  • For the foreseeable future, to protect investment, "Steam Phones"

  • must have their place in IP-Telephony.


Voip challenges l.jpg

Cold colours

VoIP Challenges

Warm colours

  • Justifiable business models for the provision of high bandwidth IP networks are `elusive´ when solely considering IP telephony

  • Business models for billing of VoIP have yet to be defined

  • Network and subscriber management is still to be unified

  • Security changes from "trust by wire" to "trust by authentication"

  • Incumbent network operator resistance

  • Services will propagate throughout the network and to the customer premises

  • Network operators at present receive income from services and for providing Network Access. They may have to share service income with others in future.


Voip opportunities l.jpg

Cold colours

VoIP Opportunities

Warm colours

  • End to End IP throughout the global network(Reduction of management costs ...)

  • New services can be provided by operators without their own networks

  • Selling services to virtually anyone (Operators and Users)

  • Services will be available everywhere

  • Security infrastructure enables new services globally

  • Global directories of services is a new opportunity

  • Highly availability can be provided in different ways

  • The number of services will grow, and grow, and ...


Voip evolution of interworking towards shared services l.jpg

Embedded Call Control UNI I/F

IX1000, 3Com

SS7 sig.

SS7 sig.

SS7 sig.

All in oneGwy

Internet

Internet

UNI:BRI, PRI ..

Call Ctrl.Gk

External Call Control UNI & NNI:

IX 2110, & others

Ext. Call CtrlGwy

UNI/NNI:BRI PRI CAS SS7-FAC..

Shared Services & Ext. Call Ctrl. UNI & NNI:

IX 2110, Castle, Surpas, SRS3000, & others(existing Gwys reused, MGCP...)

Call Ctrl.Gk

IN Services

IP Services

CPEGwy

Ext. Call CtrlGwy

Internet

UNI/NNI:BRI PRI CAS SS7 ...

Media; Signaling

Cold colours

VoIP evolution of interworking ... towards Shared-Services

Warm colours


Voip reliably delivering the future l.jpg

Cold colours

VoIP reliably delivering the future

Warm colours

  • The world is looking for IP based networks

  • There will be big changes in service provision and usage

  • For new operators IP networks are "the way to go"; Existing operators need a smooth migration path.We aim to provide for both.

  • We provide the integrated solution...

  • ...for the whole story


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