Transcript introduction to our ppt template

Keith Davies
21CN Implementation & Strategy
21CN CORE TRIAL
All information on this slide is indicative - For discussion purposes only
21CN NETWORK STRUCTURE VISION
THE KEY NETWORK NODES & FUNCTIONS
Call servers
Analogue PSTN
IAD
Derived voice
Physical metro
node location
Physical core
node location
Distributor
Node
Aggregator
Node
Metro
Node
Core
Node
Cabinets / PCPs
MSAN – initially
DSLAM with
PSTN/Combo
cards or DSL cards
Separation to IP/MPLS core
Gateways – to NGS
Gateways – to PNOs
Media servers
MPLS core
Inter-metro node
traffic
Call servers – located
in data centres with
signalling long-lined
All information on this slide is indicative - For discussion purposes only
VOICE - ARCHITECTURE OVERLAY
For PSTN features multimedia & mobility services
(Including “Broadband Voice” business services)
Terminal
adaptor
Data centre location
ADSL
modem
Intelligence
Call servers
Analogue
PSTN
replacement
POTS
ISDN2/30
TA
Modem
Consumer
voice
DSL
TDM & IP
logical
interconnects
ISDN
Gateway
DSL
Media
server
MSAN
Gateway to legacy
networks and PNOs
PE
router
MPLS
core
Metro node
Business
voice
For tones, announcements,
conference, messaging…
NTE
Business
data
Aggregator
Node
All information on this slide is indicative - For discussion purposes only
Provider Edge
Router
TRIAL ARCHITECTURE OVERLAY
POTS features
Metro Node location
ADSL
modem
Call servers
Analogue
PSTN
replacement
DSL
POTS
& DSL
Combi
Card
TDM logical
interconnects
Gateway to legacy
network
Gateway
Modem
Media
server
MSAN
MSiP
MPLS
core
PE
router
Metro node
For tones, announcements,
conference, messaging…
Aggregator
Node
BRAS
All information on this slide is indicative - For discussion purposes only
Provider Edge
Router
Legacy
IP network
TRIAL STAGES
 Stage 1: PSTN Trunking
Stage 1a: Class 4 Route Bypass
Stage 1b: Class 4 Switch Bypass
 Stage 2. PSTN local switching + Broad Band
Stage 2a: Class 5 MGCP PSTN ~1000 lines
Stage 2b: Class 5 H.248 ~ same 1000 lines
Stage 2c: Class 5 Multi-vendor MSAN 3000 lines
 Stage 4: Class 5 FTTP Link ~1000 lines
All information on this slide is indicative - For discussion purposes only
21C TRIAL CORE NETWORK
PSTN
PSTN
London Central EC PoP
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 1
PSTN
 All PSTN & ISDN call types
 Exceptionally 999/112 traffic is not routed through trial
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 2
PSTN
Consumer Direct Exchange Line (Analogue POTS)
 The capability to make 999/112 calls will not be a guaranteed facility
 The following call types will NOT be available
a. Calls to the operator (100)
b. Non-geographic special rate (08) except those numbers
required for the trial e.g. Service Centre number
c. Premium rate calls (09)
d. International calls (00)
 Limited range of PSTN Calling Features
 Note. All triallists are BT employees
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 2
Broad Band
Trialists within reach of the service, will, at an appropriate time
in the trial be offered BT Broadband 512k service (with
modem), which includes 512k broadband access and a
Voyager 205 router.
All information on this slide is indicative - For discussion purposes only
21CN TRIAL LOCATIONS
Stage 2a & 2b
Service Locations
Cambridge Trial Node
&
WAT Bypass (Stage 1b)
CRAYFORD
W HITTON
W OOLW ICH
CATFORD
GROVE PARK
BROMLEY
ELTHAM
CHERRY HINTON
FELIXSTOW E
KESGRAVE
Stage 1a Trunk
Route Bypass
IPSW ICH
BEXLEYHEATH
SIDCUP
London Central EC
Trial Node
Stage 2a &2b
ORPINGTON
Stage 2c
DARTFORD
W OODBRIDGE
ADDISCOMBE
Woolwich
Trial Node
BELSTEAD
L/WOOD GREEN EMPIRE WAT
All information on this slide is indicative - For discussion purposes only
TRIAL TIMELINE
Present Milestones
 Stage 1a)….in service
 Stage 1b) traffic loading imminent, complete by year end
 Stage 2a) customer on load during January 2005
 Stage 2b) April / May 2005
 Stage 2c) June 2005
 Stage 4. Summer 2005
 Trial closes December 2005
All information on this slide is indicative - For discussion purposes only
All information on this slide is indicative - For discussion purposes only