Tarifica alert [electronic resource].
[Potomac, Md.] : PBI Media, LLC
Published: Rockville, Md. : Access Intelligence, LLC 
Mode of access: World Wide Web.
Description based on: Issue 275 (Oct. 1, 2002); title from journal contents screen (Proquest, viewed Apr. 18, 2007).
Latest issue consulted: Issue 505 (Apr. 17, 2007) (ProQuest, viewed Apr. 18, 2007).
Telecommunication