(19)
(11) EP 1 169 814 A1

(12)

(43) Date of publication:
09.01.2002 Bulletin 2002/02

(21) Application number: 00922162.3

(22) Date of filing: 13.04.2000
(51) International Patent Classification (IPC)7H04L 12/26, H04L 12/24, H04Q 11/04
(86) International application number:
PCT/US0009/950
(87) International publication number:
WO 0062/483 (19.10.2000 Gazette 2000/42)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 13.04.1999 US 290754

(71) Applicant: Nortel Networks, Inc.
Nashville, Tennessee 37228-1397 (US)

(72) Inventors:
  • MOELLER, Douglas
    Burlington, MA 01803-4914 (US)
  • LISTE, Matthew
    New York, NY 10023 (US)

(74) Representative: Boyce, Conor et al
F. R. Kelly & Co., 27 Clyde Road, Ballsbridge
Dublin 4
Dublin 4 (IE)

   


(54) SYSTEM FOR TRACING DATA CHANNELS THROUGH A CHANNEL-BASED NETWORK