Fire & Security News Update
A simple guide to Next Generation Networks (March 2010)
There has been some confusion in the Security Industry about the impact of NGN and how it will affect signalling products. To help cut through the confusion, this short guide summaries the various components included in BT's NGN strategy and outlines potential impact to the Security Industry.
Statement on BT's 21CN Voice strategy (September 2009)
BT continues to make progress in migrating customers' voice services from its
traditional PSTN voice network to a new, IP-based 21CN voice platform. BT is just one of a number of
communications providers in the
To date, 75,000 BT lines have been successfully migrated to the new voice
service in
The platform is currently being upgraded to add additional functionality. Once
this upgrade is complete, the migrations programme will continue. By the summer of 2010, BT expects to
have migrated a further 275,000 lines to the new service in addition to the
75,000 lines already transferred.
Having successfully migrated these 350,000 lines it will provide BT and other
communications providers who resell BT's voice services with the confidence to
begin the preparation for industrial migrations to BT's 21CN voice platform
nationally, outside the
BT released to other communications providers its candidate list of exchanges
that will be included in the first phase of migrations outside of South Wales.
This was provided on September 3rd 2009. As requested by other communications
providers, the list will give industry a minimum of two years notice before the
migrations take place and the legacy exchanges are taken out of service
The list will also reflect the slower pace of migration that BT has chosen to
follow in migrating customer lines to 21CN voice. This change in approach reflects changing industry priorities that have
led to an acceleration of new product introductions such as faster broadband and
Ethernet, the changed economic outlook requiring a simpler approach to BT's 21CN
voice migration, and the already announced plans to introduce fibre-based
broadband services to the UK market.
Over the last few years, BT has led a significant testing programme of customer
premises equipment, including handsets, PABXs, modems and telecare and social
alarm equipment. This activity was to ensure that customers' equipment work on
an all IP network in the same or similar way that it works on traditional
networks. BT is the only
The work already carried out has been fundamental to BT and the industry's
overall understanding of the move to all IP networks. The investments to date in this
testing schedule will continue to bring benefits as BT, and other communications
providers, continue the journey to IP for voice as well as other services.
