Going faster and staying in control - Building the world’s biggest NGN Tim Hubbard Head of Technology Futures.

Going faster and staying in control- Building the world’s biggest NGN

Tim HubbardHead of Technology Futures

Why did BT begin 21CN

An introduction to 21CN: the technology, architecture and delivery programme

The potential opportunities enabled by 21CN

During the next 60 minutes I propose to discuss:-

21CN Setting some context

BT’s network architecture today

Today

IP

ATM

PSTN

DPCN

PDH

SDH - mesh

SDH - MSH

IP

ATM

PSTN

DPCN

PDH

SDH - mesh

SDH - MSH

DSL

KiloStream

PSTN

Fibre

Copper

DWSS

Conc

DLE

DSC

MSC

Conc

DLE

DSC

MSC

Signalling and Speech traffic

PSTN

Call control

21CN it’s big and bold

Not simply network transformation…a radical overhaul of BT’s business and systems

Supporting a fundamental shift in customers’ new requirements and expectations

Core network

convergence

Remake the

Portfolio

21C Customer

Experience

Web21C

21CN evolution

Massive network simplification

Today

IP

ATM

PSTN

DPCN

PDH

SDH - mesh

SDH - MSH

IP

ATM

PSTN

DPCN

PDH

SDH - mesh

SDH - MSH

DSL

KiloStream

PSTN

Fibre

Copper

DWSS

21CN

IP/MPLSFibre &

Copper

Copper

MSAN

Call Control

Content

WWW

ISP

Multi -service access Converged core

Current thinking. No implementation assurances

Wireless

Ethernet Backhaul

Other CPs

I/connects

21CN network architecture

IP/MPLSFibre & Copper

Copper

MSAN

Call Control

Content

WWW

ISP

Multi -service access Converged core

Wireless

Ethernet Backhaul

Call Server: Carries out “call control” by setting up and tearing down multi media communications sessions, etc

Directory: Holds all numbers, whether they are on 21CN, legacy PSTN, other CP network, etc

BRAS: Broadband service delivery point (mainly UK)

Session Border Controllers: Gateway for customer traffic between 21CN and legacy PSTN/other CP networks

Signalling Firewalls: Gateway for signalling traffic to/from 21CN and legacy PSTN and other CP networks

Other CPs

MSAN: Converts analogue PSTN speech into VoIP

MSAN: delivers either copper based, fibre based or wireless based services to end customers

MSAN: Copper version has “combi card” functioning as DSLAM for broadband and concentrator for PSTN

MSAN: Country specific

21CN Separating speech and control

Metro/Core

MSAN

21CN

PSTNOCP

MSAN

21CN Resilience

De-couple each “layer”

Network

Service

MSAN Metro Core

• UK government approved principles applied to 21CN globally

• Physical and logical resilience

• Services “homed” to two discrete source points

• Service and network availability and quality at least equal to traditional services

21CN Equivalence of Input

Comms Providers

Point of Interconnect

IP/MPLS Core

Metro/Core POP

End Users

MSAN POP

Last mile access

End customer service (any CP)MSAN

Perceived areas of bottleneck by regulator

Openreach Network Backhaul Services portfolio

Infrastructure (BTD/BTO)BT

Services

21CN progress

Service led Broadband

migration in the UK started

(Oct 07)

Customer led Wholesale

Ethernet service delivery in

the UK (Jan 08)

35% of UK national

infrastructure operational

Develop and test brand new

product portfolioDelivered to 164

countries globally

Shift to customer led migrations

PSTN Pathfinder progressing

in South Wales

21CN migration process

21CNMSAN

•Deployment of BTs NGN

20CNDSLAM

PSTN switch

Main frame

BT servingexchange building

•Disconnect copper pairs from 20CN and re-connect onto 21CN

•No change to home or office wiring

End customer site

•No need for end customer site visit

•No change to copper access network

Access network copper pairs

ISDN

•No change to CPE

21CN architecture blueprint

Configuration of products & services

Assembly of services & processes

Globalplatforms

Management & IT

Capabilities

SDK (BT & 3rd party applications)

21CN global network platform

Customers

Software Development PlatformService Creation Engine

Enabling new levels of competition

MSAN Metro Node

To other CPs

To other CPs

21CN Backhaul Network

To other CPs

PSTN

Gateways (B/Band)

BGWs

Call Server

Gateways Control(PSTN)

Non BT PSTN

Non BT PSTN(CP control)

Non BT PSTN and Broadband

Non BT Broadband

CMSAN

Personalised infotainment

and product bundling to

customers

Service delivery from a

“single point”

Discrete personalised

advertising

Third party service “mash in”

and “plug in” through open

APIs and SDKs

Going forward with 21CN??- potential services

Global, virtual supply chains

OSS convergenceImplications of UK NGA

consultation

Current challenges being addressed

In conclusion

• 21CN is carrier grade, secure and industrialised

• Customer experience on 21CN is paramount

• 21CN moves BT from service specific platforms to multi service platform, delivering massive simplification

• 21CN is enabling new service delivery over a global, real time, open platform

Answers

Questions