1. Interconnect Policy & Contract www.btwholesale.com

2. Interconnect Policy & Contract www.btwholesale.com System Alteration Notification (SAN) Process Using BT’s DLE Node Consolidation Program as an example. Presentation to SCRF 07/11/03 Presented by Chris Mitchell

3. Interconnect Policy & Contract www.btwholesale.com Operator provides details and Quote of costs (if any) SAN + 1 Month (Max) Operator BT Operator notified of BT’s planned network change by means of a SAN At least 7 Months before planned change (Min) Action Time Scale Owner Work completed, Operator invoices BT. OperatorBT Invoice paid when presented by Operator Invoice + 1 month System Alteration Notification Process Assuming BT is the issuer. SAN + 3 Months (Max) Operator & BT Quote agreed in writing & signed by both Parties Earliest reciprocal work start Operator & BT Joint Negotiations Agreement ? Disputes Procedure No Yes

4. Interconnect Policy & Contract www.btwholesale.com BT provides generic notification of intentions to all Operators by means of a Network Briefing available at http://www.btwholesale.com/interconnect2bt/network _information/network_briefings http://www.btwholesale.com/interconnect2bt/network _information/network_briefings Notification - 1.

5. Interconnect Policy & Contract www.btwholesale.com Notification - 2a. Affected Operators are subsequently individually notified by means of a formal System Alteration Notification, and.... Typical System Alteration Notification This is a formal System Alteration Notification in accordance with paragraph 4. of the NETWORK CHARGE CONTROL (ANNEX 2) STANDARD INTERCONNECT AGREEMENT. Further to the Network Briefing 'DLE Consolidation Program', and information contained in NIPPDLE Consolidation Program DLE Consolidation will require changes to your system with respect to the BT DLEs indicated on the accompanying spreadsheet that you currently interconnect with. As per paragraph 4.2 please advise BT, within one month of the receipt of this notice, of any alterations required to your System as a result of the proposed System Alteration and supply a quotation for the cost, if any, of such alterations calculated on the basis of the minimum cost consistent with good engineering practice. A response is required by

6. Interconnect Policy & Contract www.btwholesale.com Notification - 2b.... a customised spreadsheet detailing the changes that affect them.