A guide to cellular radio / OFTEL
A consumer guide to telephones and services / OFTEL
Explanory guide to the self-provision license (SPL) and the telecommunication services licence (TSL) / Office of Telecommunications
OFTEL annual report 1991 : report of the Director General of Telecommunications: for the period 1 January to 31 December 1991 to the Secretary of State for Trade and Industry / ed. OFTEL
Specification for the quality of service survey of the cellular telephone networks / OFTEL - Office of Telecommunications