Includes index.
At head of t.p.: Monopolies and Mergers Commission : Oftel.
Telephone number portability : a report on a reference under section 13 of the Telecommunications Act 1984 : presented to the Director General of Telecommunications, November 1995. ISBN 0115154515. Published by H.M.S.O. in 1995. Publication and catalogue information, links to buy online and reader comments.