1. 1G and 10G MSIL SFOA1 Trial Updates Week Ending: 13 June 2008 Beatrice Osborn Product Development, BT Design

2. 2 2 2 Cautionary Statement and Disclaimer BT's 21st Century Network is still in the process of development and the subject of consultation. The information in this presentation may be subject to change at any time without further notice and exclusive reliance on the information in this slide pack is at your own risk. BT has taken reasonable care to check that the information contained in the following slides is accurate at time of publication. In relation to any products/services referred to in this presentation which are currently under development and/or trial, BT gives no undertaking or other commitment that the product/service will be made commercially available.

3. 3 3 3 1G Service FOA1 Trial Update Summary 1G IBH, ISH, APH Launched on 30/01/08 Service First Office Application Testing continuing post launch Latest OSS release went live weekend 12/13 April 2008 Testing restarted after period of settling in Final issues being resolved Some tests will be carried over to future FOAs Portal Not considered fit for purpose yet Fixes to major issues expected in next OSS release July 2008 Meanwhile customer orders are welcome by Customer Requirements Form (CRF)

4. 4 4 4 1G Service FOA1 Trial Update In-Building Handover (IBH) Three customer journeys were tested All complete 11/06/08 Journey 1 Lead to Cash (L2C) scenarios completed 11/06/08 Trouble to Resolve (T2R) scenarios completed 04/04/08 Journey 2 Lead to Cash (L2C) scenarios completed 09/06/08 Trouble to Resolve (T2R) scenarios completed 30/04/08 Journey 3 Lead to Cash (L2C) scenarios completed 11/04/08 Trouble to Resolve (T2R) scenarios complete 02/04/08

5. 5 5 5 1G Service FOA1 Trial Update In-Span Handover (ISH) Three customer journeys being tested Journey 1 (Point of Handover Cable Chamber) Lead to Cash (L2C) scenarios completed 18/04/08 Trouble to Resolve (T2R) scenarios underway – sample scenario: Customer rejects trouble ticket handover Journey 2 (Point of Handover Cable Chamber) Lead to Cash (L2C) scenarios completed 12/05/08 Trouble to Resolve (T2R) scenarios completed 18/04/08 Journey 3 (Point of Handover Off Rack) Lead to Cash (L2C) scenarios completed 07/04/08 Trouble to Resolve (T2R) scenarios blocked – problem: trouble ticket associated to closed planned engineering works

6. 6 6 6 1G Scenarios Run Rate and Metrics Overview ScenariosL2CT2RTotal Completed Expected Start/Completion Date IBH36/39 92% 28/28 100% 64/67 96% Completed 11/06/08 ISH 26/30 87% 23/27 85% 49/57 86% 6/2/08 to 30/06/08 ? (was 9/4/08) CSH00002/06/08 (was 25/3/08) to 26/09/08 (was 24/7/08)

7. 7 7 7 10G Service FOA1 Trial Update Summary Proof of concept trial – December 2007 – invitation to proof of concept trial C21_PP_022, Ethernet Multi–Service Interconnect Link – 10 Gig Proof of Concept Trial – February 2008 – 1 CP requested to participate C21–PP-026: 10G Ethernet MSIL Trialist Invitation Results and ISH/CSH Requirements ISH and CSH – February 2008 – consultation on CPs’ requirements C21–PP-026: 10G Ethernet MSIL Trialist Invitation Results and ISH/CSH Requirements – April 2008 – conclusion not to proceed with ISH and CSH at this time C21-PP-027, 10G Ethernet MSIL ISH/CSH Requirements Results and Conclusion IBH and APH – FOA started 14/04/08

8. 8 8 8 10G Service FOA1 Trial Update In-Building Handover (IBH) Two customer journeys being tested Journey 1 Lead to Cash (L2C) scenarios started Trouble to Resolve (T2R) scenarios not yet started Journey 2 Lead to Cash (L2C) scenarios started Trouble to Resolve (T2R) scenarios not yet started Issues with reactive plan and build processes

9. 9 9 9 10G Scenarios Run Rate and Metrics Overview ScenariosL2CT2RTotal Completed Expected Start/Completion Date IBH15% 0%8%14/04/08 (was 11/02/08) to 28/07/08 ISH 0 00 No current requirements therefore no testing planned CSH000No current requirements therefore no testing planned