Final report of the Hearing Officer in case COMP/C1/38.370 — O2 United Kingdom Limited/T-Mobile UK Limited ("United Kingdom Network Sharing Agreement") (pursuant to Article 15 of Commission Decision 2001/462/EC, ECSC of 23 May 2001 on the terms of reference of Hearing Officers in certain competition proceedings (OJ L 162, 19.6.2001, p.21)) (Text with EEA relevance).