NL7907134A - Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. - Google Patents

Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. Download PDF

Info

Publication number
NL7907134A
NL7907134A NL7907134A NL7907134A NL7907134A NL 7907134 A NL7907134 A NL 7907134A NL 7907134 A NL7907134 A NL 7907134A NL 7907134 A NL7907134 A NL 7907134A NL 7907134 A NL7907134 A NL 7907134A
Authority
NL
Netherlands
Prior art keywords
signal
telephone
pulse
subscriber station
dialing
Prior art date
Application number
NL7907134A
Other languages
English (en)
Dutch (nl)
Original Assignee
Ericsson Telefon Mij
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 Ericsson Telefon Mij filed Critical Ericsson Telefon Mij
Priority to NL7907134A priority Critical patent/NL7907134A/nl
Priority to FI802986A priority patent/FI802986A/fi
Priority to GB8030653A priority patent/GB2060316A/en
Priority to NO802825A priority patent/NO802825L/no
Priority to AU62657/80A priority patent/AU6265780A/en
Priority to SE8006662A priority patent/SE8006662L/
Priority to FR8020536A priority patent/FR2466161A1/fr
Priority to IT24872/80A priority patent/IT1149255B/it
Priority to DK403980A priority patent/DK403980A/da
Priority to ES495348A priority patent/ES495348A0/es
Publication of NL7907134A publication Critical patent/NL7907134A/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • 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
    • 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)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
NL7907134A 1979-09-25 1979-09-25 Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. NL7907134A (nl)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL7907134A NL7907134A (nl) 1979-09-25 1979-09-25 Telefooninstallatie van de als sterpuntinstallatie aangeduide soort.
FI802986A FI802986A (fi) 1979-09-25 1980-09-22 Intercomsystem
GB8030653A GB2060316A (en) 1979-09-25 1980-09-23 Intercom system
NO802825A NO802825L (no) 1979-09-25 1980-09-24 Interkom-system
AU62657/80A AU6265780A (en) 1979-09-25 1980-09-24 Key telephone intercom system
SE8006662A SE8006662L (sv) 1979-09-25 1980-09-24 Abonnenttelefonsystem
FR8020536A FR2466161A1 (fr) 1979-09-25 1980-09-24 Dispositif d'intercommunication telephonique
IT24872/80A IT1149255B (it) 1979-09-25 1980-09-24 Sistema di intercomunicazione
DK403980A DK403980A (da) 1979-09-25 1980-09-24 Kommunikationsanlaeg
ES495348A ES495348A0 (es) 1979-09-25 1980-09-25 Sistema telefonico para uso privado

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7907134A NL7907134A (nl) 1979-09-25 1979-09-25 Telefooninstallatie van de als sterpuntinstallatie aangeduide soort.
NL7907134 1979-09-25

Publications (1)

Publication Number Publication Date
NL7907134A true NL7907134A (nl) 1981-03-27

Family

ID=19833910

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7907134A NL7907134A (nl) 1979-09-25 1979-09-25 Telefooninstallatie van de als sterpuntinstallatie aangeduide soort.

Country Status (10)

Country Link
AU (1) AU6265780A (it)
DK (1) DK403980A (it)
ES (1) ES495348A0 (it)
FI (1) FI802986A (it)
FR (1) FR2466161A1 (it)
GB (1) GB2060316A (it)
IT (1) IT1149255B (it)
NL (1) NL7907134A (it)
NO (1) NO802825L (it)
SE (1) SE8006662L (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000858C2 (de) * 1980-01-11 1986-11-13 Neumann Elektronik GmbH, 4330 Mülheim Tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
US4744103A (en) * 1985-11-27 1988-05-10 Rauland-Borg Corporation Computer controlled multi-link communication system
IN167984B (it) * 1986-09-23 1991-01-19 Siemens Ag
US4769837A (en) * 1987-05-04 1988-09-06 Eoa Systems, Inc. Device for adding intercom functions to a phone system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2139693B1 (it) * 1971-05-28 1973-05-25 Supravox Sarl
GB1369829A (en) * 1971-12-23 1974-10-09 Standard Telephones Cables Ltd Electric impulse transmitters
FR2285775A1 (fr) * 1974-09-17 1976-04-16 Berna Guy Installation d'interphones a appels selectifs
US4088846A (en) * 1977-03-30 1978-05-09 Bell Telephone Laboratories, Incorporated Hold-plus-intercom for single-line stations

Also Published As

Publication number Publication date
ES8105913A1 (es) 1981-06-16
NO802825L (no) 1981-03-26
FI802986A (fi) 1981-03-26
GB2060316A (en) 1981-04-29
IT1149255B (it) 1986-12-03
AU6265780A (en) 1981-04-09
SE8006662L (sv) 1981-03-26
ES495348A0 (es) 1981-06-16
IT8024872A0 (it) 1980-09-24
DK403980A (da) 1981-03-26
FR2466161A1 (fr) 1981-03-27

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed