12 September Billing Meeting Summary

Objectives Review of EBC concepts Establish how EBC will be calculated for the following BT terminating BT Originating Transit Continued Local Exchange Segment Charging Use of the EBC Evolution Planning Files and NIPP

12 September Billing Meeting – Subjects Covered 1 EBC Principles EBC Concepts EBC Files – what will happen to them EBC Models BT-terminating BT-originating Transit (sender pays TWIX) Transit (recipient pays TWIX) Treatment of number ranges Routeing plans Sender-pays-TWIX transit Recipient-pays-TWIX transit Featurenet VOIP and BBV Targeted Transit Number Portability

12 September Billing Meeting – Subjects Covered 2 Continued Local Exchange Segment Charging Partitioned routes at NGS Bundled routes Treatment of EBC Data Files NIPP

Summary No System changes for useage charges ‘Frozen’ EBC matrix Continuation of LES New EBC file Planning Files & NIPP

Issues Raised by Attendees The lack of a detailed agenda, coupled with the lack of slides in advance of the meeting meant that those attending were unable to prepare or absorb the large amount of information, nor were they necessarily able to ensure that the most suitable people from their organisations attended. The quality of detail was lacking The NIPP issue was a proper subject for network experts, not billing experts.

Actions ACTION POINT No.ISSUEOWNERSTATUS AP 12 Sep 05 / 1AP 12 Sep 05 / 1 Chris Evans to send slides to Interconnect WG distribution list Chris EvansDischarged AP 12 Sep 05 / 2To provide files showing NNG Area Name, Dial code and the closest DLE to the ‘centre of gravity’ Colin RochesterNew AP 12 Sep 05 / 3To provide files showing how retardation would work in order to identify if there were problems with the ‘major DLE’ in an area Colin RochesterNew AP 12 Sep 05 / 4To provide feedback on files provided under AP 12 Sep 05 / 3 within two weeks of receipt. Feedback to Helen Hart copied to Chris Evans IndustryNew AP 12 Sep 05 / 5Industry to comment on whether they believe bespoke versions of planning files should be made available? (See Evolution Planning File 1 – Exchange to Number Range) IndustryNew AP 12 Sep 05 / 6Industry to comment on whether they believe 21CN POCs should be shown for TCP pays NTS twix planning? (See Exchange File) IndustryNew AP 12 Sep 05 / 7AP 12 Sep 05 / 7 Industry to consider the future of NIPP in the context of potential overlap between NIPP and EBC Planning File data for discussion at the 5 th October Routing meeting IndustryNew AP 12 Sep 05 / 8AP 12 Sep 05 / 8 Chris Evans to ensure that the future of NIPP appeared on the 5 th October Routing meeting agenda Chris EvansNew AP 12 Sep 05 / 9To consider a “big bang” versus a staged programme of EBC data freezing Colin RochesterNew AP 12 Sep 05 / 10To notify Chris Evans and Helen Hart as soon as possible if the proposed BT billing solutions were inadequate to remove the need for modifications to CP’s billing systems. IndustryNew

Next Steps Notes completed in draft from – to be issued early this week Document describing BT Proposal – to be issued early this week Comment from industry – by end September Routing Experts Meeting - 5 th October Follow up billing meeting to be scheduled mid October