21CN

What is "21CN"?

21CN (21st Century Network) is a Next Generation Network (NGN) being deployed by British Telecom over the next 5 years. The core aim of the project is to bring the UK's telecoms network in to the digital age, whilst at the same time allowing BT to save up to £1billion per year in costs [0]. The total cost of the project is estimated at £10billion [1].

The following are some of the key changes that 21CN will bring:

  • The national PSTN phone network will be moved on to a digital IP network
  • The retirement of 16 existing legacy networks and the introduction of a single "multi-service" network [2]
  • The national roll-out of ADSL2+, offering services at up to 24Mbps. ADSL2+ Annex M will also be deployed, offering upstream rates of up to 2.5Mbps
  • A complete overhaul of the broadband services offered. A range of new configurable QoS (Quality of Service) products will be made available. DataStream products are being removed completely. See the broadband page for more.

In recent years BT has seen its traditional revenue sources (i.e. phone calls) decline considerably, and its "new wave" products (such as broadband) explode in popularity. Ultimately, 21CN should help BT to surf this new wave of demand and reduce their dependence on traditional revenue streams.

How 21CN will affect your existing phone and internet services

Put simply, 21CN will have no immediate effect on any end users. 21CN focuses on the core of BT's network - it makes no changes to your phone line, nor does it require you to change any equipment in your home (e.g. phone, ADSL modem/router, wireless equipment).

The services that are being migrated on to the 21CN network (such as the phone system, IPStream broadband connections, and ISDN connections) will experience a few minutes downtime on the night of the migration. Beyond that, service should be indistinguishable from present.

Services that are not being migrated on to the 21CN network (i.e. LLU, SDSL, DataStream broadband services) will be completely unaffected.

Commercial

Crown Security Systems is committed to public sector customers and to providing fire and security solutions to the public sector using the latest technologies for intruder detection, fire alarms, access control and CCTV.  We'll help you choose the security solution that will save you time and money. And as always, 24 hour monitoring means we'll be here to watch over the things, even when you can't.

ANPR

Automatic Number Plate Recognition (ANPR or LPR) can be used for automatic vehicle identification and vehicle access control applications. This technology physically consists of a camera with built in software for OCR (Optical Character Recognition). The big advantage of using ANPR for AVI applications is that it makes use of something that almost every car already has: a license plate.

Why ANPR?

ANPR is very suitable for situations where it is unachievable or undesirable to issue and administer RFID tags, in applications such as:

- vehicle identification for parking management

- vehicle access control applications with one off or short term authorizations

- vehicle management applications dealing with rapidly changing car populations

- if specific RFID bandwidths cannot be used because of interference or regulations

 

 

Public Sector

Crown Security Systems is committed to public sector customers and to providing fire and security solutions to the public sector using the latest technologies for intruder detection, fire alarms, access control and CCTV.  We'll help you choose the security solution that will save you time and money. And as always, 24 hour monitoring means we'll be here to watch over the things, even when you can't.

 

NGN Information (21CN)

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Public Sector

  • Education
  • Health Care
  • Central & Local Government
  • Police & Prisons

 

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Home Security

  • Intruder/Burglar Alarms
  • CCTV
  • Service and Maintenance
  • Monitored Systems

 

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Commercial Security

  • Integrated Solutions
  • Fire & Life Safety
  • CCTV & Video Surveillance
  • Access Control

 

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ANPR

Automatic Number Plate Recognition (ANPR) can be used for automatic vehicle identification and vehicle access control applications. This technology physically consists of a camera with built in software for OCR (Optical Character Recognition). The big advantage of using ANPR for AVI applications is that it makes use of something that almost every car already has: a license plate

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Service

All our systems are regularly maintained and serviced to help ensure your protection won’t be jeopardised when you need it the most.  We are happy to service existing systems and maintain as you require.

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