Callback Communications Ltd yesterday became the first company to obtain UK Office of Telecommunications approval to connect telephone systems to the British Telecommunications Plc network; prior to the approval, Callback, which also installs phones, had to wait for a Telecom inspection before it could connect up any telephone systems: Alan Cobb of the TIA, the association of independent telecommunications companies, hailed this first Oftel approval as a victory for independent companies and a none-too-soon abolition of British Telecom’s former 100 year old monopoly.