CH363685A - Circuit arrangement for telephone extension systems with keypad selection and automatic billing - Google Patents

Circuit arrangement for telephone extension systems with keypad selection and automatic billing

Info

Publication number
CH363685A
CH363685A CH6175658A CH6175658A CH363685A CH 363685 A CH363685 A CH 363685A CH 6175658 A CH6175658 A CH 6175658A CH 6175658 A CH6175658 A CH 6175658A CH 363685 A CH363685 A CH 363685A
Authority
CH
Switzerland
Prior art keywords
circuit arrangement
telephone extension
automatic billing
extension systems
keypad selection
Prior art date
Application number
CH6175658A
Other languages
German (de)
Inventor
Kurt Dipl Ing Fischer
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
Publication of CH363685A publication Critical patent/CH363685A/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
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
    • 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
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
CH6175658A 1957-07-18 1958-07-14 Circuit arrangement for telephone extension systems with keypad selection and automatic billing CH363685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES54359A DE1032341B (en) 1957-07-18 1957-07-18 Circuit arrangement for telephone extension systems with keypad selection and automatic billing

Publications (1)

Publication Number Publication Date
CH363685A true CH363685A (en) 1962-08-15

Family

ID=7489762

Family Applications (1)

Application Number Title Priority Date Filing Date
CH6175658A CH363685A (en) 1957-07-18 1958-07-14 Circuit arrangement for telephone extension systems with keypad selection and automatic billing

Country Status (2)

Country Link
CH (1) CH363685A (en)
DE (1) DE1032341B (en)

Also Published As

Publication number Publication date
DE1032341B (en) 1958-06-19

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