Pathfinder update webcall 15 th May 2009 Welcome to the BT's 21CN programme is subject to consultation and further development. Dates and other details should be treated as indicative only, and subject to change

Agenda Recap of Pathfinder objectives and progress Completion of Pathfinder 1 & information Learning from Pathfinder so far The next stages of Pathfinder? Reminder of opportunities to engage Question and answer session

Voice migration first phase of voice pilot activity – Pathfinder The voice migration and pilot activity in preparation for voice network migration is known as Pathfinder This pilot activity involves voice line migrations only at present The pilot is taking place in a small area of South Wales Pathfinder is providing learning and helping to build confidence for large scale migrations All planning and operational activities are carried out in close collaboration with a working group of service providers We are contacting service providers with customers in the area ahead of migration activities

Pathfinder The first phase of Pathfinder has now successfully completed 15 exchanges migrated to 21CN in the South Wales area The final 3 exchanges (Llandaff, Whitchurch and Llanishen) were successfully migrated on 7 th May 09 There were no issues with the migration of 3 sites in a night CPE payment machines that caused issues at previous sites were successfully groomed A total of 64K working customer lines have been migrated to 21CN XXX number of calls have been carried over 21CN

Completed exchange migrations Exchange name Date of migrationExchange nameDate of migration Wick23 rd October 2008Caerphilly26 th March 2009 Bedlinog30 th October 2008Roath E23 rd April 2009 Nelson6 th November 2008Roath D23 rd April 2009 Penarth22 nd January 2009Llanishen7 th May 2009 Ynysybwl5 th February 2009Whitchurch7 th May 2009 Treharris19 th February 2009Llandaff7 th May 2009 Cardiff S5 th March 2009 Ferndale12 th March 2009 Tonyrefail12 th March 2009

Learning from Pathfinder so far Key findings - Proved the slow start approach taken is the correct one - Tested the technology, processes and supporting tools with CPs - Fault numbers continue to run at a low level, at or below numbers for 20C Niche CPE problems now understood and fixes planned No significant issues with Caller Display, burglar alarms or ATMs No recent significant platform issues, good call quality & good network performance CP confidence built

Pathfinder – the next phase Moving into “Pathfinder Volume POTS” Voice migrations only, not ISDN2/30 January 2010 through to July 2010 Increasing the South Wales footprint 7 DLEs to be migrated – Cardiff G, L, E, F, Bridgend, Cardiff B & Pontypridd Will complete the migration of up to 260K lines No change to architecture for Pathfinder Volume POTS - Ericsson based call server Gradual migration of groomed or regressed lines will take place July 2009 – September Call Server and MSAN upgrades in Pathfinder area – providing further functionality and increased industrialisation Will provide key learning following migration of a complete DLE in a night

Opportunities to engage Regular calls will continue through the summer (refer to the Consult21 planner for details) Ability to influence the programme by attending the Consult21 Implementation and Migration working group Receive the monthly summary of 21CN activities via Consult21 View the Pathfinder update report via the Consult21 website – under the IMWG working group section The Pathfinder Dashboard and Learning Log can be found in the Secure Area of the Consult21 website Do visit the Consult21 migration one stop shop area of the website – to view the supporting tools available for information on how to become Your customers are affected – it’s important for you to be aware and engaged

Useful information & how to get engaged Or visit these sites The Consult21 website: The independent public information website covering the process of migration: For general information about BT’s 21CN programme go to:

 Answers Questions

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