Going faster and staying in control an introduction to 21CN

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Going faster and staying in control- an
introduction to 21CN
Tim Hubbard Head of 21CN Solutions Strategy
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Proposed topics for discussion

• Todays public network infrastructure
• Introducing 21CN
• Supporting emergency services on 21CN

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Todays public network infrastructure

• Network engineered for pre determined conditions
• normal
• busy hour
• emergency

Dedicated hierarchical network of concentrators,
local, trunk and tandem exchanges, with fixed
relationship between all
Dedicated network of trunks and circuits for
voice traffic, each call has its own circuit
Known high volume traffic (eg XFactor) engineered
for as required
Complex, Inflexible, Restrictive
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21CN - evolution

• Simplify the network
• faster time to market
• Separate the services from the network
• enable service delivery from any location to
  any device
• Global platform with two starting points
• UK PSTN and Broadband to 20m customers
• RoW VoIP and IP VPNs

Today
21CN
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21CN - reliability, continuity and resilience

• 21CN is a private IP network
• 21CN separates network and service
• 21CN is engineered with high availability and
  resilience
• BT vastly experienced in managing traditional and
  IP-based
• networks

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21CN - preparing for going live
Strategic solution lab testing
Customer equipment compatibility testing
End customer communications
Service provider consultation and testing
Exchange migration process testing
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21CN - where it all began

• Cardiff and surrounding area in November 2006
• Migration of around 350,000 end user lines in the
  Cardiff, Bridgend and Pontypridd area
• BT has committed to support private circuits, etc
  on our existing infrastructure until 2011

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21CN - emergency and essential services

• Working to ensure due care and consideration is
  given to managing services critical to public
  safety
• Priority is to maintain public access to defined
  life and death services during 21CN migration
• Monthly meetings of Emergency and Critical
  Numbers industry forum
• Consultation begins 9 months before migration
• Agreed life and death numbers
• 999/112
• Text Direct 18000
• ChildLine
• Samaritans
• NHS Direct /NHS 24 (Scotland)
• 101 Single Non Emergency Number
• Transco - gas escape reporting number
• Emergency phones at unmanned level crossings
  impacted by 21CN
• Anti-terrorist hotline

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Comparing PSTN to 21CN
No change to the end users residential, call
centres, etc NICC completed standards to support
EGTPS, out on 28 day approval CSIA Assurance
obtained same as PSTN
PSTN targets
21CN Targets

• Unsuccessful calls 0.5
• 1 (busy hour)
• Post Dial Delay 630mS avg
• Major Service Outage 22mins/yr
• Delay to Dial Tone 250mS
• Network availability 99.996

• Unsuccessful calls 0.5
• 1 (busy hour)
• Post Dial Delay 600mS avg
• Major Service Outage 20.1mins/yr
• Delay to Dial Tone 500mS
• Network availability 99.996

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In conclusion

• 21CN is carrier grade, secure and industrialised
• 21CN will support traditional and next generation
  services on the same platform
• 21CN will simplify and speed up new service
  delivery

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Questions
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Answers