ES554358A0 - Sistema de comunicacion telefonica de linea unica - Google Patents

Sistema de comunicacion telefonica de linea unica

Info

Publication number
ES554358A0
ES554358A0 ES554358A ES554358A ES554358A0 ES 554358 A0 ES554358 A0 ES 554358A0 ES 554358 A ES554358 A ES 554358A ES 554358 A ES554358 A ES 554358A ES 554358 A0 ES554358 A0 ES 554358A0
Authority
ES
Spain
Prior art keywords
communication system
single line
telephone communication
line telephone
telephone
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES554358A
Other languages
English (en)
Other versions
ES8707060A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES8707060A1 publication Critical patent/ES8707060A1/es
Publication of ES554358A0 publication Critical patent/ES554358A0/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
ES554358A 1985-04-25 1986-04-25 Sistema de comunicacion telefonica de linea unica Expired ES8707060A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72673385A 1985-04-25 1985-04-25

Publications (2)

Publication Number Publication Date
ES8707060A1 ES8707060A1 (es) 1987-07-16
ES554358A0 true ES554358A0 (es) 1987-07-16

Family

ID=24919783

Family Applications (1)

Application Number Title Priority Date Filing Date
ES554358A Expired ES8707060A1 (es) 1985-04-25 1986-04-25 Sistema de comunicacion telefonica de linea unica

Country Status (8)

Country Link
EP (1) EP0221090A1 (es)
JP (1) JPS62502579A (es)
KR (1) KR880700581A (es)
AU (1) AU588305B2 (es)
CA (1) CA1244978A (es)
ES (1) ES8707060A1 (es)
MX (1) MX161903A (es)
WO (1) WO1986006570A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893334A (en) * 1987-08-28 1990-01-09 Power Play Intercommunication system for telephones
GB2213351B (en) * 1987-12-04 1992-06-17 Roy Musselbrook Telephone, extention-to-intercom module
IT1226312B (it) * 1988-07-26 1990-12-27 Italtel Telematica Sistema di telefoni intercomunicanti su linea bifilare.
IT1236823B (it) * 1989-11-23 1993-04-02 Alcatel Dial Face Spa Dispositivo per la trasmissione su un'unica coppia di conduttori del segnale fonico, della segnalazione e dell'alimentazione in apparecchiature intercomunicanti.
NL9400239A (nl) * 1994-02-17 1995-10-02 Grid Telecom Systems Bv Huistelefoonsysteem.
GB9407696D0 (en) * 1994-04-19 1994-06-15 Marikon Resources Inc A telephone exchange system
US5920615A (en) * 1995-10-19 1999-07-06 British Telecommunications Public Limited Company Telecommunications switch
FI962312A (fi) * 1996-05-31 1997-12-01 Teleste Viestintae Oy Puhelinjärjestelmä
US5978469A (en) * 1997-01-21 1999-11-02 U S West, Inc. Apparatus for telephone extension control
DK1227545T3 (da) 1999-10-26 2003-10-27 Fractus Sa Interlacede flerbåndsantennearrangementer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092501A (en) * 1973-12-05 1978-05-30 Iwasaki Tsushinki Kabushiki Kaisha Key telephone system
JPS519306A (ja) * 1974-07-11 1976-01-26 Fujitsu Ltd Nikyodokanyushashuyohoshiki
US4000376A (en) * 1975-03-31 1976-12-28 Viking Electronics, Inc. Telephone privacy device
JPS5341111A (en) * 1976-09-28 1978-04-14 Toshiba Corp Dial signal sending device
PT68279A (en) * 1977-08-15 1978-08-01 Goodyear Tire & Rubber Pneumatic tire and pneumatic tire mounted on a rim
JPS56112194A (en) * 1980-02-12 1981-09-04 Nec Corp Omnibus circuit device
CA1166777A (en) * 1981-03-23 1984-05-01 Gordon D. Benning Home telephone exchange
CA1169597A (en) * 1981-09-11 1984-06-19 Gordon D. Benning Home communications and control system

Also Published As

Publication number Publication date
AU5614786A (en) 1986-10-30
ES8707060A1 (es) 1987-07-16
WO1986006570A1 (en) 1986-11-06
MX161903A (es) 1991-03-01
EP0221090A1 (en) 1987-05-13
KR880700581A (ko) 1988-03-15
CA1244978A (en) 1988-11-15
JPS62502579A (ja) 1987-10-01
AU588305B2 (en) 1989-09-14

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506