GB1567080A - Telephone subscriber conncetion devices - Google Patents

Telephone subscriber conncetion devices Download PDF

Info

Publication number
GB1567080A
GB1567080A GB7868/77A GB786877A GB1567080A GB 1567080 A GB1567080 A GB 1567080A GB 7868/77 A GB7868/77 A GB 7868/77A GB 786877 A GB786877 A GB 786877A GB 1567080 A GB1567080 A GB 1567080A
Authority
GB
United Kingdom
Prior art keywords
signal
wire
counting
subscriber station
loop
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
GB7868/77A
Other languages
English (en)
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1567080A publication Critical patent/GB1567080A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28Arrangements 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Meter Arrangements (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
GB7868/77A 1976-03-16 1977-02-24 Telephone subscriber conncetion devices Expired GB1567080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762611066 DE2611066C2 (de) 1976-03-16 1976-03-16 Fernsprechteilnehmer-Anschlußeinrichtung mit Frequenz- oder Zeitmultiplex-Übertragungsabschnitt

Publications (1)

Publication Number Publication Date
GB1567080A true GB1567080A (en) 1980-05-08

Family

ID=5972619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7868/77A Expired GB1567080A (en) 1976-03-16 1977-02-24 Telephone subscriber conncetion devices

Country Status (12)

Country Link
JP (1) JPS52112207A (nl)
BE (1) BE852528A (nl)
BR (1) BR7701565A (nl)
DE (1) DE2611066C2 (nl)
DK (1) DK141268C (nl)
FR (1) FR2345022A1 (nl)
GB (1) GB1567080A (nl)
IE (1) IE44788B1 (nl)
IL (1) IL51661A (nl)
IT (1) IT1076387B (nl)
LU (1) LU76943A1 (nl)
NL (1) NL171005C (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767728B2 (en) 2006-02-13 2010-08-03 3M Innovative Properties Company Curable compositions for optical articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767728B2 (en) 2006-02-13 2010-08-03 3M Innovative Properties Company Curable compositions for optical articles

Also Published As

Publication number Publication date
NL7702746A (nl) 1977-09-20
DK113477A (da) 1977-09-17
BE852528A (fr) 1977-09-16
JPS5633912B2 (nl) 1981-08-06
IT1076387B (it) 1985-04-27
DE2611066C2 (de) 1977-09-01
NL171005C (nl) 1983-01-17
FR2345022B1 (nl) 1981-06-12
IL51661A0 (en) 1977-05-31
DE2611066B1 (de) 1977-01-20
JPS52112207A (en) 1977-09-20
FR2345022A1 (fr) 1977-10-14
LU76943A1 (nl) 1978-10-18
IE44788B1 (en) 1982-04-07
IE44788L (en) 1977-09-16
IL51661A (en) 1978-12-17
DK141268B (da) 1980-02-11
BR7701565A (pt) 1978-01-03
DK141268C (da) 1980-08-04

Similar Documents

Publication Publication Date Title
US4467142A (en) System for transmitting emergency calls from persons requiring assistance
US4574164A (en) Ringing signal transmission system for radiotelephone system
US6009155A (en) Communication system and its accounting method
US3764747A (en) Billing system in mobile communication
CA1089134A (en) Telephone station set interface circuit
FI89658B (fi) Arrangemang foer styrning av en ekoslaeckare
GB1567080A (en) Telephone subscriber conncetion devices
US3917907A (en) Methods and apparatus for 4-wire switching
US2883473A (en) Transistor gating circuit
US2590746A (en) Control system for carrier telecommunication circuits
US2294237A (en) Telephone circuit
US3662125A (en) Telephone line testing arrangement
US3649778A (en) Selective ringing in subscriber carrier telephone system
US3551603A (en) Switching system scanning arrangement
GB2242100A (en) Alarm communication controller
US4053709A (en) Telephone connector
US3433902A (en) Speech immunity voice frequency signalling systems
US1990414A (en) Circuit for controlling transmission in signaling systems
US2351766A (en) Telephone system
US2564378A (en) Carrier system signaling circuits
US2424244A (en) Circuit for locking service observing teletypewriter during supervisory signal reception
US1997705A (en) Calling arrangement for radiotelephone circuits
US2228375A (en) Telephone metering system
US1717083A (en) Carrier signal system
US3634630A (en) Communication channel holding system for an automatic telephone exchange

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee