1. Future Voice Services Workshop 16th January 2008
Jo Upward
Director 21CN Customer Experience

2. Agenda:
14:30 Welcome & Introductions
14:35 Engagement Approach & Timeline
14:50 Approach & Key Principles
15.10 Open discussion – Capturing the opportunities of future voice
17.15 Summary & Next Steps
Close

3. Our commitments
Collaborating with you to develop future voice services
Understanding and balancing the needs of the broad range of CPs
LLU & Infrastructure players, SPs, Mobile & Cable TV providers as well as BTr
For products and services and geographic rollout
Fulfilling both our regulatory obligations and our commitments under TSR

4. Multi-laterally & bi-laterally Multi-laterally & bi-laterally
Deployment Strategy & Future Voice Services: Timeline & process for engagement
Nov / Dec 2007
Jan 2008
Feb/Mar 2008
Feb/Mar 2008
TBC 2008
Engagement with CPs to gain their views on:
Future voice services
Voluntary migration
Principles of BT’s Deployment Strategy 2008/09 communicated
BT confirms the principles it intends to adopt
Detailed consultation continues
Release of detailed roll-out strategy for voice
Multi-laterally & bi-laterally
Multi-laterally & bi-laterally

5. Engagement during January
16th January Voice Services Workshop for Consult21 Steering Board and significant voice product users (this workshop – invite only)
17th January (am) Managing IMWG
22nd January (am) Voice Services Network Structure Working Group
22nd January (pm) Voice Services discussion for Line Access Working Group
January (and beyond) Bi-laterals with voice players
CP input used to shape BT’s thinking on:
Future Voice Services
BTs wider Deployment Strategy

6. Workshop Ethos & Approach
CPs are being consulted ahead of any formal decision by BT to help shape BT plans
Strawman approach to aid discussion on pro’s and con’s on options available
Recognise and acknowledge different CP needs
Guided by the key principles that BT outlined the last Steering Board

7. Ian Stirrat Director, 21CN Planning & Performance BT Design
Deployment Strategy: Approach and Key Principles & responses to feedback
Ian Stirrat
Director, 21CN Planning & Performance
BT Design

8. Overall 21CN Approach and Key Principles
Overall objective unchanged:
The delivery of a service independent core infrastructure that will enable services to be differentiated through the flexibility, control and intelligence that software can provide
We will:
look to deliver new services first, in advance of replicating existing services
protect and enhance customer experience
provide extended periods for voluntary customer upgrades to these new services, before moving to a technology migration of remaining customers
build an open global and real-time platform on which new software services can be co-created with BT, or developed directly by our customers and third parties

9. Immediate Activity Areas
Deliver new Data and Broadband products over a rapidly accelerating 21CN infrastructure
Restart Pathfinder
Continue to learn
Review and progress best approach for Voice
Progress our consultation with CPs

10. Infrastructure – Build out continues
Site build schedule driven by demand
Complete remaining UK footprint
WBC footprint to
50% addressable market
April 09
Introduction of Small site & Modular build capability
Q3 08
Complete Transmission
Infrastructure
Q3 08
Complete Core & Metro Build
Q2 08
Footprint for WBC
5% addressable market
April 08

11. Pathfinder Bedlinog experience has been valuable
Various service issues identified and resolved
Restart when Customer Experience optimised:
Software upgrades loaded before more DLEs loaded
Gain further Customer Experience feedback:
Validate Upgrade processes as new voice and other services are launched
21CN Performance with larger volumes
Complete migration of both an AXE10 and System X
Migration process and procedures
Learning from full network configurations & Operational support learning
Review scale and scope of Pathfinder subject to Voice approach

12. Voice Portfolio: Strategic Options
Ian Hannah
Director, Commercial Projects, BT Design
Wolfgang Spinnler
General Manager, 21CN Product Management, BT Design
Dave Elmendorf
Director, Service Execution Platform, BT Design

13. Creating a new voice services framework: the balancing act
Enable Innovation & Differentiation to end users
Consistency & ubiquity of end user services
Exploit existing/NGN networks
Access all or key segments of end users
High degree of control over the end user service
Optimising & integrating system & process devt roadmaps

14. Our Collective Opportunity
To collaboratively develop a new framework for the NGN world that:
Balances the needs of all CPs
Enables BT to fulfil its obligations
Create business opportunities
Drives innovation to meet the evolving needs of consumer and business end users
Builds confidence ahead of any network migrations
We aim to conclude the analysis and share our proposed approach by March 2008
Today is a great opportunity for us all to fine tune our shared insights and understandings

15. The journey to create the new framework & your input
What are the key attributes of the technical architecture necessary to support future voice services and the differing needs of UK CPs? What are CPs future voice capability needs that need to be satisfied by BT’s wholesale capabilities?
What are the key features/services/attributes of future voice services for both business and consumer end users?
What are the enablers which would make it attractive for you and your end user base to voluntarily migrate to those future voice services?
What are you looking for in BT’s Deployment Strategy Plan to give you confidence in the achievability of its proposed future voice approach?
Early migration
National Migration
What will enable you to migrate 80% of your end users to the new network (core voice?)
What will enable you to migrate the remaining 20% of your end users to the new network (“core plus” voice?)

16. Moving forward today: We would like to explore 3 broad themes
How quickly do we want to embrace the opportunities and challenges of this brave new world ?
How do we create and sustain differentiation?
How do we plan and manage the transition?

17. Complete Call Server (and Innovative Applications)
How quickly do we want to embrace .. Broad Range of Potential Services for CPs
Low-Level
Dialed-Digit
Primitives
Complete Call Server (and Innovative Applications)
Network-based CP SP 17
© British Telecommunications plc

18. Range of Potential Options for CPs
© British Telecommunications plc
CP with Call Server SP SP
“Applications CP”
CP has their own Call Server.
They look to BT for virtual analogue lines
Access to these lines (on BT’s MSAN’s) could be either at the SIP Proxy level or at a lower level “Virtual Line Control” level (e.g. access to switch hook, digit-at-a-time) P1
Communications
Provider (CP)
CRM, Billing
Call Server
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Apps P2
CP is a “SP” with account control for customer, and looks to BT for all network infrastructure including Call Server functions P1 P2 P3 P4
SIP, RTP (and L2C, T2R APIs)
L2C, T2R APIs
L2C, T2R APIs
L2C, T2R & App. APIs
Innovation
Platform P3
CP is a “SP” with account control for customer, and looks to BT for all network infrastructure including Call Server functions.
In addition, looks to BT to also provide advanced functionality (e.g. ‘Virtual Receptionist’ service)
Standard
Platform
for Innovation
Applications
Voice Access
(“Light”)
Voice Features
w/Optional Triggers
Call Server - with Triggers
Core & Core Plus Voice
(“Heavy”) P4
CP is a “SP” with account control for customer, and looks to BT for all network infrastructure including Call Server functions.
In addition, looks to BT to also provide advanced functionality (e.g. ‘Virtual Receptionist’ service)
Also, the CP may implement their own applications to extend BT’s applications into a particular market segment/solution. (This is a new category of CP, an “Applications CP”)
(Network Signaling: SIP-I, C7, but this signaling is not visible to CPs)
IP/VPN Connectivity
MSAN
Baseband
Line Card BB
Broadband
Baseband/Analog Voice
with the Option for
Broadband (IP) and
Derived Voice (SIP, RTP, and Device-dependent CODECs)
“Baseband Voice”
“Derived Voice” 18

19. Range of Potential Options for CP
© British Telecommunications plc
CP with Call Server SP SP
“Applications CP”
Communications
Provider (CP)
CRM, Billing
Call Server
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Apps
Several Options within Voice Access P1 P2 P3
L2C, T2R APIs P4
L2C, T2R & App. APIs
SIP, RTP (and L2C, T2R APIs)
L2C, T2R APIs
Innovation
Platform
Standard
Platform
for Innovation
Applications
Voice Access
(“Light”)
Voice Features
w/Optional Triggers
Call Server - with Triggers
Core & Core Plus Voice
(“Heavy”)
(Network Signaling: SIP-I, C7, but this signaling is not visible to CPs)
IP/VPN Connectivity
MSAN
Baseband
Line Card BB
Baseband/Analog Voice
with the Option for
Broadband (IP) and
Derived Voice (SIP, RTP, and Device-dependent CODECs)
Broadband
“Baseband Voice”
“Derived Voice” 19
© British Telecommunications plc

20. Range of Potential Options for CP
© British Telecommunications plc
CP with Call Server
Communications
Provider (CP)
CRM, Billing
Call Server
P1.1
Low level ‘dialed digit’ interface to CP P1
SIP, RTP (and L2C, T2R APIs)
P1.2
Selective proxy of calls (e.g. BT handles emergency calls
P1.3
BT behaves as SIP proxy
MSAN
IP/VPN Connectivity
Voice Access
(“Light”)
Baseband
Line Card BB
Baseband/Analog Voice
with the Option for
Broadband (IP) and
Derived Voice (SIP, RTP, and Device-dependent CODECs)
Broadband
“Baseband Voice”
“Derived Voice” 20

21. End User Alternatives: Voice, Broadband, Converged
© British Telecommunications plc
End User Alternatives: Voice, Broadband, Converged
CP with Call Server SP SP
“Applications CP”
Communications
Provider (CP)
CRM, Billing
Call Server
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Apps
Each of these Products (P1-P4) have the option of being a converged product, and also provide Broadband connectivity to the customer.
Broadband customers would have the option to receive one or more ‘derived’ voice channels. P1 P2
L2C, T2R APIs P3 P4
SIP, RTP (and L2C, T2R APIs)
L2C, T2R APIs
L2C, T2R & App. APIs
Innovation
Platform
Standard
Platform
for Innovation
Applications
Voice Access
(“Light”)
Voice Features
w/Optional Triggers
Call Server - with Triggers
Core & Core Plus Voice
(“Heavy”)
(Network Signaling: SIP-I, C7, but this signaling is not visible to CPs)
IP/VPN Connectivity
MSAN
Baseband
Line Card BB
Voice, Broadband, Converged
Baseband/Analog Voice
with the Option for
Broadband (IP) and
Derived Voice (SIP, RTP, and Device-dependent CODECs)
Broadband
“Baseband Voice”
“Derived Voice” 21

22. How do we create and sustain differentiation

23. Range of Potential Options for CP
© British Telecommunications plc
CP with Call Server SP SP
“Applications CP”
Communications
Provider (CP)
CRM, Billing
Call Server
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Communications
Provider (CP)
CRM, Billing
Apps
BT’s SDK Domain
BT’s SDKs allow Services to be Extended into specific market segments
SDK provide robust toolkit, documentation, test cases, example code, so CPs can easily take advantage of BT’s APIs belonging to the Innovative Applications P1 P2 P3
L2C, T2R APIs P4
SIP, RTP (and L2C, T2R APIs)
L2C, T2R APIs
L2C, T2R & App. APIs
Innovation
Platform
Standard
Platform
for Innovation
Applications
Voice Access
(“Light”)
Voice Features
w/Optional Triggers
Call Server - with Triggers
Core & Core Plus Voice
(“Heavy”)
(Network Signaling: SIP-I, C7, but this signaling is not visible to CPs)
IP/VPN Connectivity
MSAN
Baseband
Line Card BB
Baseband/Analog Voice
with the Option for
Broadband (IP) and
Derived Voice (SIP, RTP, and Device-dependent CODECs)
Broadband
“Baseband Voice”
“Derived Voice” 23
© British Telecommunications plc

24. Service Innovation Stack & SDK
© British Telecommunications plc
Platforms
Technical Innovations
Service Innovations
SDKs
Rapid Service Delivery (BSS/OSS)
SOA
BPEL
Rapid Concept to Market and Micro Segmentation
Web Services
Portfolio Mgmt
21CN Innovation Platform
SOA
BPEL
Communications Integrated w/ Applications
Social Networks
Mash-Up
Web/SIP Convergence
Speech Rec
21CN
Call
Server
21CN Call
Triggers
Rules-Engine
Free On-Net and Extensibility to International
21CN Call
Features
Open Call Server
Call Triggers
3rd Party Call Control
Standard Media Servers
IP/VPN Connectivity
High Fidelity VoIP and
Multiple derived voice channels
IP/Internet Connectivity
Global Reach
Always-on Connections
MSAN
Baseband
Line Card BB
Powerful “Dashboards”
via Devices
Derived VoIP
Advanced CODECs
Broadband
Access
Media Gateways
Devices
Note: Most Significant “Innovation” is the ability to continually offer and modify communication applications that are open and can be tailored to specific customer groups and market segments.
© British Telecommunications plc

25. How do we plan and manage the transition ?

26. How do we plan and manage the transition ?
Emulate current world
What opportunities does this create?
What drives the CP decision making process for early migration?
Create new basic voice service “80% of all end users use 20% of features”
BT needs to innovate to meet it obligations in new way?
national migration
BT emulates some current services on 21CN?
Early migration
Opportunity for CPs to innovate to meet needs of specific market segments?
Early migration