What is 21CN?
BT's strategy & key objectivesDelivering new applications for the future
Image3421CN progress
Consult21Key milestonesSouth Wales implementationUK RolloutGlobal implementation21CN - Built on robust foundationsCustomer premises equipment testingPhoto gallery
Image3421CN technology
21CN technology in the UK21CN technology globally21CN domain descriptions21CN key technologies21CN systems21CN key characteristicsCall paths across 21CN21CN and standardsGlossary
Image3421CN benefits
UK economyMarkets BT serves outside the UKConsumersSmall & medium enterprisesCorporates and the public sectorCommunication providers
Image3421CN newsImage34BT customers
21CN news

Print This Page

Press releases

BT and O2 in new managed access agreement (May 13, 2008) - Five year agreement to manage increases in network requirements to deliver cost efficiencies and enhance O2 mobile broadband experience for customers.

BT introduces 21CN next generation wholesale broadband service (April 30, 2008) - BT has announced the introduction of its new family of next generation broadband services to communications providers in the UK.

BT launches unified communications and collaboration solutions for global enterprises (October 11, 2007) - BT has launched a comprehensive global portfolio of unified communications and collaboration (UCC) solutions and services to deliver the full benefits of its 21st Century Network (21CN) capabilities to customers.

BT and T-Mobile reach major network agreement (July 18, 2007) - T-Mobile and BT Wholesale today announced a new agreement that sees BT link thousands of T-Mobile's base station sites around the UK to the T-Mobile network.

BT heralds end to landmark voice trial as 21CN customer migrations continue (June 28, 2007) - Following the successful migration of the first live customers onto BT's 21st Century Network (21CN) in South Wales, BT is to close the pioneering 21CN voice trial network which made communications history in 2005 when it carried the world's first phone calls over an all IP next generation infrastructure.

BT strengthens African position as global 21CN reaches Nigeria (May 24, 2007) - BT, one of the world's leading providers of communications solutions and services, has announced the extension of its global 21CN platform into Nigeria, with a new multi-protocol label switching (MPLS) node in Lagos.

BT to deliver next generation  "know-how" to communication providers worldwide (December 6, 2006) - BT today announced the launch of its 21C Global Venture (21C GV), a business unit that will enable the delivery of next-generation networks (NGN) to communication providers across the globe.

South Wales school makes history with first call over new multi billion pound UK phone network (November 28, 2006) - A pupil at a South Wales school will make her own piece of history today (Tuesday, November 28) with the first live call in the UK over the world's most advanced next generation network.

First customers go live on BT's 21st century network (November 28,2006) - BT made communications history today with the transfer of the first customer lines to its 21st Century Network (21CN), the world's most advanced next generation network.

BT reveals its 21CN UK rollout plans (September 20,2006) - Today BT confirmed that Scotland, Wales and each of the English regions will benefit from £100s of millions of direct 21CN investment providing every area of the UK - including customers in remote parts of the country - with a world-leading communications network designed to carry both today’s and tomorrow’s voice, data, video-on-demand and broadband services ...To view local news releases visit: BT UK and Regional News Releases

BT announces details of first live customer upgrades to 21st century network in Cardiff (September 4, 2006) - BT today announced details of the first steps it will take to transition customers in the UK to its 21st century network (21CN).

BT's 21st century network racks up 23 million calls (July 26, 2006) - BT's transformation of its network to deliver the next generation of communications services took a major step forward today with more than 23 million customer calls successfully carried over the IP based trial network.

BT announces new Fixed - Mobile Convergence service for large businesses and awards contract to Alcatel (May 11, 2006) - Following the successful launch of BT Fusion, the intelligent fixed - mobile phone for consumers and small businesses, BT has today announced its plans for a groundbreaking new Fixed-Mobile Converged service for large businesses and multi-national corporates both in and outside the UK. This new solution will utilise Wi-Fi as the interface to the fixed network in key locations such as the office, home, and BT Openzone hotspots.

BT announces further 21st century network progress (March 6, 2006)  - BT has concluded negotiations and signed contracts with the remaining four preferred suppliers for its next generation network transformation programme - the 21st Century Network (21CN).

BT deploys global IP-based voice platform (February 20, 2006)  - BT has today announced a £12 million investment in a first of its kind global voice platform based on internet protocol (IP).

BT signs contracts with 21st century network suppliers (December 22, 2005) - BT today announced that it has concluded negotiations and signed contracts with four of the preferred suppliers for its radical next generation network transformation programme.

Ear we go as BT gears up for 21st Century Network transformation (December 19, 2005) - The finely-tuned hearing and listening skills of a team of voice quality specialists known affectionately as the "Golden Ears" are playing a key role in BT’s plans for Britain’s new 21st Century Network.

InfoWorld 100 Awards recognize BT’s 21st Century Network (December 9, 2005) - Annual Awards honor most creative and cutting-edge implementations of enterprise technology.

Three million calls carried over BT's  21st Century Network in latest trials (December 2, 2005) - BT today announced that three million customer calls have been successfully carried over an Internet Protocol (IP) link in the latest phase of its 21st Century Network (21CN) trials.

Cardiff, Pontypridd and Bridgend areas chosen as first in the UK to benefit from BT's 21st century network (July 4, 2005) - People in the Cardiff, Pontypridd and Bridgend areas will be the first in the UK to enjoy phone calls, broadband and Ethernet services over BT’s 21st Century Network (21CN) when it is rolled out to a regional concentration of customers for the first time.

Cardiff chosen as first city to benefit from BT's 21st Century Network  (July 4, 2005) - The people of Cardiff and the surrounding area will be the first in the UK to enjoy phone calls, broadband and Ethernet services over BT’s 21st Century Network (21CN) when it is rolled out to a regional concentration of customers for the first time.

BT’s Group CTO outlines strategy to put Ethernet at heart of 21CN  (June 28, 2005) - When BT completes the development of its world-leading 21st Century Network, it will represent one of the largest installations of Ethernet in any carrier’s network, anywhere in the world.

BT announces preferred suppliers for 21st Century Network programme (April 28, 2005) - BT today took a major step towards delivering its 21st Century Network with the selection of its preferred suppliers.

CEO of BT Wholesale urges telecoms leaders to embrace the IP revolution (February 21, 2005)- In a keynote address to over 700 delegates attending the 21st Century Communications World Forum in London today, Paul Reynolds, CEO of BT Wholesale declared the beginning of the "fourth wave of innovation - the IP revolution".

Suffolk at heart of BT's 21st Century Network trials (November 17, 2005) - BT's 21st century network transformation programme has passed two significant milestones - with the first homes connected up in BT's fibre to the premises trial and the first customer trials to divert calls off the PSTN and on to an IP link gone live..

BT 21st Century network trials on track as voice calls run on IP link (November 17, 2004) - BT's 21st century network transformation programme is set to have passed three significant milestones with the first homes connected up in BT's fibre to the premises trial; the first customer trials to divert calls off the PSTN and on to an IP link gone live and a third 21CN network node due to be commissioned tomorrow.

BT to switch voice calls to IP as 21st Century Network takes shape (June 9, 2004) - BT's transformation of its network to deliver the next generation of communications services took a step forward with the announcement of a pilot for the switch-over of voice calls to an end to end IP (Internet Protocol) based network.

BT announces network transformation timetable (June 9, 2004) - BT today set out the timetable for the transformation of its UK networks.