IP TELEPHONY SYSTEM AND METHOD OF OPERATION THEREOF USING SS7 NETWORK - Patent 1131943

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EP 1 131 943 A1

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(43)	Date of publication:
	12.09.2001 Bulletin 2001/37

(21)	Application number: 00961966.9

(22)	Date of filing: 19.09.2000

(51)	International Patent Classification (IPC)⁷: H04M 7/00, H04Q 3/00

(86)	International application number:
	PCT/US0025/624

(87)	International publication number:
	WO 0124/499 (05.04.2001 Gazette 2001/14)

(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

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Priority:

24.09.1999 US 404725

(71)	Applicants:
	Nokia Networks OY 00045 Helsinki (FI) Sengodan, Senthil Woburn, MA 01801 (US) Bansal, Rajesh Chandra Acton, MA 01720 (US)

(72)	Inventors:
	SENGODAN, Senthil Woburn, MA 01801 (US) BANSAL, Rajesh, Chandra Acton, MA 01720 (US)

(74)	Representative: Johansson, Folke Anders et al
	Nokia CorporationP.O. Box 206 00045 Nokia Group 00045 Nokia Group (FI)

(54)	IP TELEPHONY SYSTEM AND METHOD OF OPERATION THEREOF USING SS7 NETWORK