Going faster and staying in control - Building the world

1
Going faster and staying in control- Building
the worlds biggest NGN
Tim Hubbard Head of Technology Futures
2
During the next 60 minutes I propose to discuss-

• Why did BT begin 21CN
• An introduction to 21CN the technology,
  architecture and delivery programme
• The potential opportunities enabled by 21CN

3
21CN Setting some context
4
BTs network architecture today
PSTN
PSTN
PSTN
DPCN
DPCN
Copper
KiloStream
ATM
ATM
DSL
IP
IP
Fibre
SDH
-
MSH
SDH
-
MSH
SDH
-
mesh
SDH
-
mesh
DWSS
PDH
PDH
Today
5
21CN its big and bold
Not simply network transformationa radical
overhaul of BTs business and systems Supporting
a fundamental shift in customers new
requirements and expectations
6
21CN evolution
Massive network simplification
7
21CN network architecture
Multi
-
service access
Converged core
Call Control
Copper
WWW
Ethernet Backhaul
IP/MPLS
Fibre Copper
MSAN
ISP
Content
Wireless
8
21CN Separating speech and control
Metro/Core
21CN
MSAN
PSTN OCP
MSAN
9
21CN Resilience
Service
Network
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

De-couple each layer
10
21CN Equivalence of Input
Last mile access
End Users
MSAN
IP/MPLS Core
Metro/Core POP
MSAN POP
Perceived areas of bottleneck by regulator
11
21CN progress
Customer led Wholesale Ethernet service delivery
in the UK (Jan 08)
Service led Broadband migration in the UK started
(Oct 07)
PSTN Pathfinder progressing in South Wales
35 of UK national infrastructure operational
Develop and test brand new product portfolio
Delivered to 164 countries globally
Shift to customer led migrations
12
21CN migration process
BT serving exchange building
20CN
DSLAM
PSTN switch
Main frame

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

• No change to CPE

• No change to home or office wiring

• No change to copper access network

• No need for end customer site visit

13
21CN architecture blueprint
Customers
Configuration of products services
SDK (BT 3rd party applications)
Assembly of services processes
Capabilities
Software Development Platform Service Creation
Engine
Management IT
Global platforms
21CN global network platform
14
Enabling new levels of competition
PSTN
Call Server
To other CPs
To other CPs
CMSAN
To other CPs
21CN Backhaul Network
Metro Node
MSAN
15
Going forward with 21CN??- potential services
Personalised infotainment and product bundling to
customers
Service delivery from a single point
Third party service mash in and plug in
through open APIs and SDKs
Discrete personalised advertising
Global, virtual supply chains
16
Current challenges being addressed
Implications of UK NGA consultation
OSS convergence
17
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

18
Questions
?
Answers