(19)
(11) EP 0 966 859 A1

(12)

(43) Date of publication:
29.12.1999 Bulletin 1999/52

(21) Application number: 98960017.0

(22) Date of filing: 15.12.1998
(51) International Patent Classification (IPC): 
H04M 3/ 22( . )
H04Q 11/ 04( . )
H04M 3/ 36( . )
(86) International application number:
PCT/GB1998/003756
(87) International publication number:
WO 1999/031925 (24.06.1999 Gazette 1999/25)
(84) Designated Contracting States:
CH DE DK FI FR GB LI SE

(30) Priority: 15.12.1997 EP 19970310155
29.05.1998 EP 19980304246

(71) Applicant: Hewlett-Packard Company
Palo Alto, California 94304 (US)

(72) Inventors:
  • MOTTISHAW, Peter John
    West Lothian EH30 9XU (GB)
  • ARCHIBALD, David Moir
    Dalkeith, Midlothian EH22 3HT (GB)
  • CARSON, Douglas John
    Roseburn, Edinburgh EH12 5PG (GB)
  • REYNOLDS, Alistair, Scott
    Linlithgow EH49 6QA (GB)

(74) Representative: Coker, David Graeme, et al 
Hewlett-Packard Limited Intellectual Property Section, Building 2, Filton Road
Bristol BS12 6QZ
Bristol BS12 6QZ (GB)

   


(54) MONITORING ISDN LINKS