ES501724A0 - Un aparato telefonico de linea multiple - Google Patents

Un aparato telefonico de linea multiple

Info

Publication number
ES501724A0
ES501724A0 ES501724A ES501724A ES501724A0 ES 501724 A0 ES501724 A0 ES 501724A0 ES 501724 A ES501724 A ES 501724A ES 501724 A ES501724 A ES 501724A ES 501724 A0 ES501724 A0 ES 501724A0
Authority
ES
Spain
Prior art keywords
phone device
multiple line
line phone
phone
line
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
ES501724A
Other languages
English (en)
Other versions
ES8207394A1 (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 ES8207394A1 publication Critical patent/ES8207394A1/es
Publication of ES501724A0 publication Critical patent/ES501724A0/es
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/18—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Telephone Set Structure (AREA)
ES501724A 1980-04-28 1981-04-28 Un aparato telefonico de linea multiple Granted ES501724A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/144,780 US4315110A (en) 1980-04-28 1980-04-28 Multiple line telephone instrument

Publications (2)

Publication Number Publication Date
ES8207394A1 ES8207394A1 (es) 1982-09-16
ES501724A0 true ES501724A0 (es) 1982-09-16

Family

ID=22510100

Family Applications (1)

Application Number Title Priority Date Filing Date
ES501724A Granted ES501724A0 (es) 1980-04-28 1981-04-28 Un aparato telefonico de linea multiple

Country Status (11)

Country Link
US (1) US4315110A (es)
JP (1) JPS56169989A (es)
KR (1) KR860001202B1 (es)
BR (1) BR8102533A (es)
CA (1) CA1161177A (es)
DE (1) DE3114738A1 (es)
DK (1) DK186881A (es)
ES (1) ES501724A0 (es)
FR (1) FR2481551A1 (es)
MX (1) MX149276A (es)
NO (1) NO811268L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051319B2 (ja) * 1979-07-30 1985-11-13 岩崎通信機株式会社 ボタン電話装置における制御信号伝送方式
FR2563674A1 (fr) * 1984-04-25 1985-10-31 Horlogerie Photograph Fse Dispositif d'intercommunication entre une unite centrale et des postes telephoniques peripheriques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1018270A (en) * 1972-05-23 1977-09-27 Federico R. Laliccia Key telephone system using time division and space division control
US3843845A (en) * 1972-09-11 1974-10-22 Northern Electric Co Electronic key telephone system
US3936602A (en) * 1974-10-23 1976-02-03 Northern Electric Company Limited Full duplex data transmission system using two speeds of diphase signal for simplified sync
US4125749A (en) * 1975-08-09 1978-11-14 Tamura Electric Works, Ltd. Key telephone systems
US4046972A (en) * 1976-10-27 1977-09-06 Bell Telephone Laboratories, Incorporated Key telephone station set circuit
US4203011A (en) * 1978-01-17 1980-05-13 Tie/Communications, Inc. Computer controlled key telephone station set

Also Published As

Publication number Publication date
KR830005804A (ko) 1983-09-09
JPS56169989A (en) 1981-12-26
ES8207394A1 (es) 1982-09-16
MX149276A (es) 1983-10-05
DK186881A (da) 1981-10-29
FR2481551B1 (es) 1985-02-22
US4315110A (en) 1982-02-09
DE3114738A1 (de) 1982-03-04
KR860001202B1 (ko) 1986-08-25
CA1161177A (en) 1984-01-24
BR8102533A (pt) 1982-01-05
NO811268L (no) 1981-10-29
FR2481551A1 (fr) 1981-10-30

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