AT257701B - Circuit arrangement for telecommunication, in particular telephone systems with two-way connections - Google Patents

Circuit arrangement for telecommunication, in particular telephone systems with two-way connections

Info

Publication number
AT257701B
AT257701B AT220566A AT220566A AT257701B AT 257701 B AT257701 B AT 257701B AT 220566 A AT220566 A AT 220566A AT 220566 A AT220566 A AT 220566A AT 257701 B AT257701 B AT 257701B
Authority
AT
Austria
Prior art keywords
telecommunication
circuit arrangement
telephone systems
particular telephone
way connections
Prior art date
Application number
AT220566A
Other languages
German (de)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT257701B publication Critical patent/AT257701B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/36—Charging, billing or metering arrangements for party-lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/68—Circuit arrangements for preventing eavesdropping
    • H04M1/70—Lock-out or secrecy arrangements in party-line systems
    • 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
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
AT220566A 1965-03-11 1966-03-09 Circuit arrangement for telecommunication, in particular telephone systems with two-way connections AT257701B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES95881A DE1223428B (en) 1965-03-11 1965-03-11 Circuit arrangement for telecommunication, especially telephone systems with two-way connections

Publications (1)

Publication Number Publication Date
AT257701B true AT257701B (en) 1967-10-25

Family

ID=7519677

Family Applications (1)

Application Number Title Priority Date Filing Date
AT220566A AT257701B (en) 1965-03-11 1966-03-09 Circuit arrangement for telecommunication, in particular telephone systems with two-way connections

Country Status (7)

Country Link
AT (1) AT257701B (en)
BE (1) BE677734A (en)
CH (1) CH442437A (en)
DE (1) DE1223428B (en)
GB (1) GB1078795A (en)
NL (1) NL6602085A (en)
SE (1) SE311385B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310723A (en) * 1980-08-01 1982-01-12 Svala Carl G Party line apparatus
US4332983A (en) * 1980-10-27 1982-06-01 Hosein Vakili Telephone privacy controller
US4371755A (en) * 1981-01-09 1983-02-01 Bell Telephone Laboratories, Incorporated Bridge lifter circuit

Also Published As

Publication number Publication date
GB1078795A (en) 1967-08-09
NL6602085A (en) 1966-09-12
SE311385B (en) 1969-06-09
BE677734A (en) 1966-09-12
CH442437A (en) 1967-08-31
DE1223428B (en) 1966-08-25

Similar Documents

Publication Publication Date Title
AT260310B (en) Circuit arrangement for telecommunication switching systems, in particular telephone switching systems with switching networks
AT257701B (en) Circuit arrangement for telecommunication, in particular telephone systems with two-way connections
CH435387A (en) Circuit arrangement for telecommunications, in particular telephone systems, with central billing
AT274054B (en) Circuit arrangement for centrally controlled telecommunications systems, in particular telephone switching systems
CH445574A (en) Circuit arrangement for telecommunications switching systems, in particular telephone systems with switching fields
AT266227B (en) Circuit arrangement for centrally controlled telecommunication systems, in particular telephone systems, with two-way connections
AT257699B (en) Circuit arrangement for control purposes in telecommunication systems with coupling fields, in particular in telephone systems
CH452617A (en) Circuit arrangement for telecommunications switching systems, in particular for telephone extension systems, with dial memories
CH473516A (en) Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with two-wire connection
AT246233B (en) Circuit arrangement for telecommunications, in particular telephone systems
CH521667A (en) Circuit arrangement for telecommunications systems, in particular telephone exchanges, with cross-field control devices
AT259635B (en) Circuit arrangement for telecommunication systems, in particular telephone branch exchange systems with memories
AT309540B (en) Circuit arrangement for centrally controlled telecommunications switching systems, in particular telephone switching systems, with two-way connections
AT314616B (en) Circuit arrangement for telecommunication, in particular telephone systems with two-way connections
AT290633B (en) Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT290631B (en) Circuit arrangement for telecommunication, in particular telephone systems with multi-stage coupling devices
AT254283B (en) Circuit arrangement for telecommunications, in particular telephone systems, with switch panels constructed in the form of a matrix
AT274053B (en) Circuit arrangement for telecommunications, in particular telephone systems
CH453437A (en) Circuit arrangement for telecommunication switching systems, in particular telephone systems
AT281134B (en) Circuit arrangement for telecommunications systems, in particular telephone exchange systems, with sequence control
CH426948A (en) Circuit arrangement for telecommunication, in particular telephone systems with marked adjustable selectors
CH521020A (en) Circuit arrangement for telecommunications systems, in particular telephone exchanges, with cross-field control devices
CH450496A (en) Circuit arrangement for telephone systems, in particular telephone branch exchange systems
AT308205B (en) Circuit arrangement for centrally controlled telecommunications switching systems, in particular telephone switching systems, with two-way connections
CH440384A (en) Circuit arrangement for telecommunications systems, in particular telephone exchanges, with coordinate-shaped control panels