BT 21st century trial info
Milton Keynes is where one of the trials is underway. Remember that just because Marconi (see SONS relationship) is in the trials doesn't mean they have won. Same for Siemens and JNPR.
BT 21st century network trials on track as voice calls run on IP link
First foundations in place for migration of calls from PSTN to IP
First homes connected in fibre to the premises trial
Third key network node set for commissioning
BT? 21st century network transformation programme is set to have passed three significant milestones by the end of this week. Trials to divert the first customer calls off the public switched telephone network (PSTN) onto a dedicated internet protocol (IP) link have gone live; the first homes have been connected up in BT? fibre to the premises trial; and the third 21CN network node is due to be commissioned tomorrow.
A new IP link between the major network nodes at Cambridge and Woolwich in South East London, along with softswitches (advanced software-based switching platforms) installed at these locations, enables telephone calls to bypass a major traffic route in BT? PSTN. This represents a key step towards the creation of BT? next generation network, as announced in June.
Over the coming weeks BT plans to begin adding call traffic from 38 digital local exchange units onto the 21CN nodes. These exchanges in Cambridgeshire, Essex, Lincolnshire, Suffolk and Hertfordshire serve more than 1.5million lines between them. Once complete next month, the volume of calls being handled by the trial platform will represent around 1 per cent of BT? current PSTN trunk network call traffic - equivalent to about 10,000 simultaneous calls at the busiest time of the day.
Commissioning of the third 21CN network node, at Faraday exchange in London is due to begin tomorrow. Faraday will be a key site when the trial is extended to handle end to end customer calls over the IP network in January.
BT Wholesale chief executive Paul Reynolds said: ?his is a historic occasion ?the PSTN has served us well for over a hundred years. Now, for the first time, we have public voice on a single IP network where voice calls are transmitted in data packets.
?ur 21CN ambitions have fundamental and far-reaching implications for BT, for the telecommunications industry and, I believe, for the UK economy and society too. With 21CN, BT is leading the world and transforming our industry - it's radical and truly unprecedented in scope and scale.
?e set a challenging timescale to put the building blocks in place for the trials which underpin 21CN and we have delivered these first steps. The technology works. Now we can move forward. We propose to extend participation in the voice trial to others in the industry and will be consulting operators in the coming weeks about the best way to do this.?br>
BT? 21CN programme is designed to remove duplication across the existing multiple, service specific networks to create a single converged multi-service IP based network.
Note to editors:
Call flows between the Cambridge and Woolwich network nodes began to be diverted on October 30 on to the softswitches and bypass route using IP packet technology. Call flows over this 21CN platform will include some call traffic being carried over the network by BT Wholesale on behalf of other operators.
Nominated digital local exchange units (DLEs) at Bishop? Stortford, Boston, Bury St Edmunds, Cambridge, Huntingdon and Peterborough will be hosted by the Cambridge network node and the nominated DLEs at Basildon, Chelmsford, Colchester, Ipswich and Spalding will be hosted on the Woolwich network node.
This is a key step towards a migration which will ultimately see all calls over BT? network carried using IP packet technology. BT plans the large scale migration of voice and other PSTN based services from 2
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