WO1999022506A3 - Telephone system with answering machine - Google Patents

Telephone system with answering machine Download PDF

Info

Publication number
WO1999022506A3
WO1999022506A3 PCT/IB1998/001656 IB9801656W WO9922506A3 WO 1999022506 A3 WO1999022506 A3 WO 1999022506A3 IB 9801656 W IB9801656 W IB 9801656W WO 9922506 A3 WO9922506 A3 WO 9922506A3
Authority
WO
WIPO (PCT)
Prior art keywords
answering machine
telephone
line
telephone system
tone
Prior art date
Application number
PCT/IB1998/001656
Other languages
French (fr)
Other versions
WO1999022506A2 (en
Inventor
Eduard Henri Stiphout
Martinus Ernastinus Jea Mennen
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to JP52358399A priority Critical patent/JP2001507554A/en
Priority to EP98946667A priority patent/EP0968598A2/en
Publication of WO1999022506A2 publication Critical patent/WO1999022506A2/en
Publication of WO1999022506A3 publication Critical patent/WO1999022506A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors

Abstract

The present invention relates to a telephone system (1) comprising at least one telephone subset (3) and an answering machine (5) which are connected, in parallel, to an outside telephone line (9). The system (1) has a first line terminal (11) and a second line terminal (13). The answering machine (5) comprises tone-generating means (37) for generating a probe tone from the answering machine (5) to the first and second line terminals (11, 13). The system (1) further comprises detection means (41, 43, 45) for detecting a change in reflected residue of said tone in response to an impedance change between the telephone system (1) and the outside telephone line (9).
PCT/IB1998/001656 1997-10-28 1998-10-19 Telephone system with answering machine WO1999022506A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP52358399A JP2001507554A (en) 1997-10-28 1998-10-19 Telephone system with answering machine
EP98946667A EP0968598A2 (en) 1997-10-28 1998-10-19 Telephone system with answering machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97203344 1997-10-28
EP97203344.3 1997-10-28

Publications (2)

Publication Number Publication Date
WO1999022506A2 WO1999022506A2 (en) 1999-05-06
WO1999022506A3 true WO1999022506A3 (en) 1999-08-12

Family

ID=8228874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/001656 WO1999022506A2 (en) 1997-10-28 1998-10-19 Telephone system with answering machine

Country Status (5)

Country Link
EP (1) EP0968598A2 (en)
JP (1) JP2001507554A (en)
KR (1) KR20000069724A (en)
CN (1) CN1249100A (en)
WO (1) WO1999022506A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011758A1 (en) * 1980-03-26 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Telephone party line circuit - has voltage monitoring circuit providing signal to switch off answering machine for A=subscriber and switch on B=subscriber's appts.
US5392332A (en) * 1992-05-27 1995-02-21 Phonemate, Inc. Shared line telephone answering system with a telephone line-powered disconnect module
US5481596A (en) * 1994-05-26 1996-01-02 At&T Corp. Auxiliary baseband telephone interface for an answering machine
US5579377A (en) * 1994-11-18 1996-11-26 Rogers; Laurence S. Remote-control telephone answering system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011758A1 (en) * 1980-03-26 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Telephone party line circuit - has voltage monitoring circuit providing signal to switch off answering machine for A=subscriber and switch on B=subscriber's appts.
US5392332A (en) * 1992-05-27 1995-02-21 Phonemate, Inc. Shared line telephone answering system with a telephone line-powered disconnect module
US5481596A (en) * 1994-05-26 1996-01-02 At&T Corp. Auxiliary baseband telephone interface for an answering machine
US5579377A (en) * 1994-11-18 1996-11-26 Rogers; Laurence S. Remote-control telephone answering system and method

Also Published As

Publication number Publication date
JP2001507554A (en) 2001-06-05
CN1249100A (en) 2000-03-29
EP0968598A2 (en) 2000-01-05
KR20000069724A (en) 2000-11-25
WO1999022506A2 (en) 1999-05-06

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