GB1269760A - Improvements in or relating to coin-operated telecommunications systems - Google Patents

Improvements in or relating to coin-operated telecommunications systems

Info

Publication number
GB1269760A
GB1269760A GB3472270A GB3472270A GB1269760A GB 1269760 A GB1269760 A GB 1269760A GB 3472270 A GB3472270 A GB 3472270A GB 3472270 A GB3472270 A GB 3472270A GB 1269760 A GB1269760 A GB 1269760A
Authority
GB
United Kingdom
Prior art keywords
coin
call
signals
relating
july
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.)
Expired
Application number
GB3472270A
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.)
Siemens AG
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
Priority claimed from DE19691936700 external-priority patent/DE1936700C/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1269760A publication Critical patent/GB1269760A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

1,269,760. Automatic exchange systems. SIEMENS A.G. 17 July, 1970 [18 July, 1969], No. 34722/70. Heading H4K. In a coin-operated system utilizing A.C. signals as coin-collect signals during the course of a call, these same signals are used for other purposes during the initial setting up process of the call. The only specified purposes are, for checking that a predetermined minimum fee has been deposited when it is determined by the exchange from an analysis of some (e.g. the first) of the dialled digits that a chargeable call is to be set-up, for checking the correct operation of the subset A.C. signal receiving equipment and for demanding information about special characteristics of the subscriber.
GB3472270A 1969-07-18 1970-07-17 Improvements in or relating to coin-operated telecommunications systems Expired GB1269760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691936700 DE1936700C (en) 1969-07-18 Circuit arrangement for coin telephones rather with payment by means of alternating current signs

Publications (1)

Publication Number Publication Date
GB1269760A true GB1269760A (en) 1972-04-06

Family

ID=5740257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3472270A Expired GB1269760A (en) 1969-07-18 1970-07-17 Improvements in or relating to coin-operated telecommunications systems

Country Status (7)

Country Link
AT (1) AT313990B (en)
BE (1) BE753637A (en)
CH (1) CH515665A (en)
FR (1) FR2055213A5 (en)
GB (1) GB1269760A (en)
LU (1) LU61342A1 (en)
NL (1) NL165902C (en)

Also Published As

Publication number Publication date
DE1936700B2 (en) 1971-05-13
DE1936700A1 (en) 1971-02-18
AT313990B (en) 1974-03-11
NL165902C (en) 1981-05-15
CH515665A (en) 1971-11-15
BE753637A (en) 1971-01-18
NL7010104A (en) 1971-01-20
LU61342A1 (en) 1970-09-16
FR2055213A5 (en) 1971-05-07
NL165902B (en) 1980-12-15

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