Topic summary
British Telecommunications
Extracted from the Wikipedia article BT Group.
2001 debt crisis, sale, and demerger
A demerger followed in November 2001, when the former mobile telecommunications business of BT, BT Cellnet, was hived off as a separate business named "mmO2". This included BT owned or operated networks in other countries, including BT Cellnet (UK), Esat Digifone (Ireland), and Viag Interkom (Germany). All networks now owned or operated by mmO2 (except Manx Telecom) were renamed as O2. The de-merger was accomplished via a share-swap, all British Telecommunications plc shareholders received one mmO2 plc and one BT Group plc (of which British Telecommunications is now a wholly owned subsidiary) share for each share they owned. British Telecommunications plc was de-listed on 16 November, and the two new companies started trading on 19 November.