Service Providers: SIP and Softswitch Christian Huitema Architect, Windows Networking Microsoft Corporation.

Service Providers: SIP Service Providers: SIP and Softswitchand Softswitch

Christian HuitemaChristian HuitemaArchitect, Windows NetworkingArchitect, Windows NetworkingMicrosoft CorporationMicrosoft Corporation

ServicesServices

The Old World: Services The Old World: Services Tied to SwitchesTied to Switches

IP access networkIP access network

InternetInternet

The “Softswitch” Illusion:The “Softswitch” Illusion:Tie Services to Access?Tie Services to Access?

ServicesServices

Users and Providers Users and Providers are both missing are both missing opportunities!opportunities!

Service AService A

IP access networkIP access network

InternetInternet

Service BService BService CService C

Open Networks: More Open Networks: More Innovation!Innovation!

ServicesServices

Innovation Has to Start Innovation Has to Start with a Transitionwith a Transition

NewNew& improved& improved

InternetInternet

1 Billion1 BillionTelephoneTelephones s

On Classic NetworkOn Classic Network

Peak of the Transition, 100 Peak of the Transition, 100 Million Gateway Lines!Million Gateway Lines!

1 Billion1 Billiontelephonetelephoness

NewNewand improvedand improved

InternetInternet

SignalizationSignalization

TransmissionTransmissionCircuitsCircuits PacketsPackets

SIPSIPSS-7SS-7

MGCPMGCP

Key MessagesKey Messages

Competition, open networks, SIP Competition, open networks, SIP bring more innovationbring more innovation

Softswitch/MGCP needed to manage Softswitch/MGCP needed to manage 100 million gateway lines100 million gateway lines