(19)
(11) EP 1 000 518 A1

(12)

(43) Date of publication:
17.05.2000 Bulletin 2000/20

(21) Application number: 98937968.0

(22) Date of filing: 22.07.1998
(51) International Patent Classification (IPC)7H04Q 7/38
(86) International application number:
PCT/US9815/048
(87) International publication number:
WO 9907/174 (11.02.1999 Gazette 1999/06)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 28.07.1997 US 53939 P
21.07.1998 US 120103

(71) Applicants:
  • NORTEL NETWORKS CORPORATION
    Montreal,Quebec H2Y 3Y4 (CA)
  • Jiang, Jianping
    Richardson, TX 78081 (US)
  • Ahmad, Azeem
    Dallas, TX 75252 (US)
  • Turner-Harris, Jerri L.
    Garland, TX 75044 (US)
  • Edupuganty, Baji
    Plano, TX 75093 (US)
  • Illidge, William Edward
    Kanata,Ontario K2W 1A6 (CA)

(72) Inventors:
  • JIANG, Jianping
    Richardson, TX 75081 (US)
  • AHMAD, Azeem
    Dallas, TX 75252 (US)
  • TURNER-HARRIS, Jerri, L.
    Garland, TX 75044 (US)
  • EDUPUGANTY, Baji
    Plano, TX 75093 (US)
  • ILLIDGE, William, Edward
    Kanata, Ontario K2W 1A6 (CA)

(74) Representative: Christophers, Rachel Alder et al
Sommerville & Rushton,Business Link Building,45 Grosvenor Road
St. Albans,Hertfordshire AL1 3AW
St. Albans,Hertfordshire AL1 3AW (GB)

   


(54) SOFT HANDOFF METHOD AND APPARATUS