(19)

(11)

EP 0 233 216 A1

(12)

(43) Date of publication: 26.08.1987 Bulletin 1987/35 (21) Application number: 86904594.0 (22) Date of filing: 26.06.1986

(51) International Patent Classification (IPC):  H04M 9/ 08( . ) (86) International application number: PCT/US1986/001383 (87) International publication number: WO 1987/001255 (26.02.1987 Gazette 1987/05)

(84) Designated Contracting States: AT CH DE FR GB IT LI NL SE (30) Priority: 20.08.1985 US 19850767543 (71) Applicant: MOTOROLA, INC. Schaumburg, IL 60196 (US)	(72) Inventors: HADDAD, Kenneth, Robert 1427 Valley Lake Schaumburg, IL 60196 (US) VILMUR, Richard, Joseph Palatine, IL 60067 (US)