NO751275L - - Google Patents

Info

Publication number
NO751275L
NO751275L NO751275A NO751275A NO751275L NO 751275 L NO751275 L NO 751275L NO 751275 A NO751275 A NO 751275A NO 751275 A NO751275 A NO 751275A NO 751275 L NO751275 L NO 751275L
Authority
NO
Norway
Prior art keywords
signal
subscriber
line
internal
relay
Prior art date
Application number
NO751275A
Other languages
English (en)
Norwegian (no)
Other versions
NO141875B (no
Inventor
P D Avontuur
A G C Van Der Bend
Original Assignee
Ericsson Telefon Ab L M
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 Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO751275L publication Critical patent/NO751275L/no
Publication of NO141875B publication Critical patent/NO141875B/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
    • 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)
  • Structure Of Telephone Exchanges (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
NO751275A 1974-04-11 1975-04-10 Telefonapparatanlegg for et antall abonnementapparater NO141875B (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7404995A NL7404995A (nl) 1974-04-11 1974-04-11 Voor particulier gebruik dienende telefoon- installatie.

Publications (2)

Publication Number Publication Date
NO751275L true NO751275L (sv) 1975-10-14
NO141875B NO141875B (no) 1980-02-11

Family

ID=19821159

Family Applications (1)

Application Number Title Priority Date Filing Date
NO751275A NO141875B (no) 1974-04-11 1975-04-10 Telefonapparatanlegg for et antall abonnementapparater

Country Status (8)

Country Link
DK (1) DK154475A (sv)
FI (1) FI60475C (sv)
FR (1) FR2267670B1 (sv)
GB (1) GB1501704A (sv)
IT (1) IT1037245B (sv)
NL (1) NL7404995A (sv)
NO (1) NO141875B (sv)
SE (1) SE409537B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1535650A (en) * 1976-11-18 1978-12-13 Int Standard Electric Corp Electronic switching device for producing a timed signal
GB2179523B (en) * 1985-08-23 1989-07-19 Ferranti Gte Limited Private telephone system
US4744103A (en) * 1985-11-27 1988-05-10 Rauland-Borg Corporation Computer controlled multi-link communication system

Also Published As

Publication number Publication date
SE409537B (sv) 1979-08-20
NL7404995A (nl) 1975-10-14
SE7503102L (sv) 1975-10-13
GB1501704A (en) 1978-02-22
FI60475C (fi) 1982-01-11
FR2267670A1 (sv) 1975-11-07
NO141875B (no) 1980-02-11
FI60475B (fi) 1981-09-30
FR2267670B1 (sv) 1982-10-08
IT1037245B (it) 1979-11-10
FI751008A (sv) 1975-10-12
DK154475A (sv) 1975-10-12

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