SIMULATING CHANGES IN TELEPHONE SUBSCRIBER LINE

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EP 0 870 389 A1

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(43)	Date of publication:
	14.10.1998 Bulletin 1998/42

(21)	Application number: 97910183.0

(22)	Date of filing: 24.10.1997

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International Patent Classification (IPC):

H04M 1/ 723^{( . )}
H04M 3/ 00^{( . )}
H04W 84/ 14^{( . )}

H04M 1/ 725^{( . )}
H04M 9/ 02^{( . )}

(86)	International application number:
	PCT/CA1997/000802

(87)	International publication number:
	WO 1998/019436 (07.05.1998 Gazette 1998/18)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

25.10.1996 CA 19962188844
20.12.1996 US 19960772673

(71)	Applicant: NORTHERN TELECOM LIMITED
	Montreal, Quebec H2Y 3Y4 (CA)

(72)	Inventor:
	PEPPER, David, Arnold Kemptville, Ontario K0G 1J0 (CA)

(74)	Representative: Ryan, John Peter William, et al
	Nortel Patents, London Road Harlow, Essex CM17 9NA Harlow, Essex CM17 9NA (GB)

(54)	SIMULATING CHANGES IN TELEPHONE SUBSCRIBER LINE