(19)

(11)

EP 1 284 082 A2

(12)

(88) Date of publication A3: 20.06.2002 (43) Date of publication: 19.02.2003 Bulletin 2003/08 (21) Application number: 01937078.2 (22) Date of filing: 28.05.2001

(51) International Patent Classification (IPC)7: H04M 3/42, H04M 3/00 (86) International application number: PCT/SE0101/191 (87) International publication number: WO 0109/3547 (06.12.2001 Gazette 2001/49)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 26.05.2000 US 579113 (71) Applicant: Telefonaktiebolaget L M Ericsson (Publ) 126 25 Stockholm (SE)	(72) Inventor: MARTINEZ, Jaime Saltillo, Coahuila (MX) (74) Representative: Karlsson, Leif Karl Gunnar et al Ström & Gulliksson IPC AB,P.O. Box 793 220 07 Lund 220 07 Lund (SE)