Coding telephone number to avoid “wrong numbers”

Detalles Bibliográficos
Publicado en:	Philippine Engineering Journal Vol. 17, no. 2 (1996), 1-28
Autor Principal:	Abaya, Efren F.
Formato:	Artigo
Idioma:	English
Publicado:	1996
Subjects:	Telephone Telephone numbers Caller ID telephone service