ES2070711A2 - Telephone exchange call screening device - Google Patents

Telephone exchange call screening device

Info

Publication number
ES2070711A2
ES2070711A2 ES09300311A ES9300311A ES2070711A2 ES 2070711 A2 ES2070711 A2 ES 2070711A2 ES 09300311 A ES09300311 A ES 09300311A ES 9300311 A ES9300311 A ES 9300311A ES 2070711 A2 ES2070711 A2 ES 2070711A2
Authority
ES
Spain
Prior art keywords
screening device
telephone exchange
call screening
exchange call
equipment
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.)
Granted
Application number
ES09300311A
Other languages
Spanish (es)
Other versions
ES2070711R (en
ES2070711B1 (en
Inventor
Palomo Jose Luis Adanero
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.)
Amper Datos S A
Original Assignee
Amper Datos S A
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 Amper Datos S A filed Critical Amper Datos S A
Priority to ES9300311A priority Critical patent/ES2070711B1/en
Publication of ES2070711A2 publication Critical patent/ES2070711A2/en
Publication of ES2070711R publication Critical patent/ES2070711R/es
Application granted granted Critical
Publication of ES2070711B1 publication Critical patent/ES2070711B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

This is equipment whose purpose is to eliminate the possibility of a subscriber communicating with a certain service or certain services. It is formed by means of a body 1 with a welded plastic base and cover and which has, at one of its ends, a plug 2 for connection to the distribution frames 3 of the telephone exchanges, whilst inside it houses a double- face printed-circuit board which supports all the electronics for the equipment formed by the functional association of an integrated circuit 4 which includes an optical detector and a switch placed in series with one of the wires of the telephonic pair, a supply circuit 5 and a microcontroller 6 with its corresponding oscillator 7.
ES9300311A 1993-02-17 1993-02-17 CALL DISCRIMINATOR FOR TELEPHONE CENTER. Expired - Lifetime ES2070711B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9300311A ES2070711B1 (en) 1993-02-17 1993-02-17 CALL DISCRIMINATOR FOR TELEPHONE CENTER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9300311A ES2070711B1 (en) 1993-02-17 1993-02-17 CALL DISCRIMINATOR FOR TELEPHONE CENTER.

Publications (3)

Publication Number Publication Date
ES2070711A2 true ES2070711A2 (en) 1995-06-01
ES2070711R ES2070711R (en) 1997-01-01
ES2070711B1 ES2070711B1 (en) 1997-07-01

Family

ID=8280815

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9300311A Expired - Lifetime ES2070711B1 (en) 1993-02-17 1993-02-17 CALL DISCRIMINATOR FOR TELEPHONE CENTER.

Country Status (1)

Country Link
ES (1) ES2070711B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188508A (en) * 1978-08-21 1980-02-12 Brindle Patrick A Telephone call restricting apparatus
US4355208A (en) * 1980-08-27 1982-10-19 Mitel Corporation Telephone call denial system
WO1987000376A1 (en) * 1985-06-28 1987-01-15 Terence John Newell Telephone line access control
GB2200516A (en) * 1987-01-27 1988-08-03 Richard Drewnicki Call barring apparatus
US4866762A (en) * 1988-04-04 1989-09-12 Pintar Robert R Apparatus for restricting telephone calls

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188508A (en) * 1978-08-21 1980-02-12 Brindle Patrick A Telephone call restricting apparatus
US4355208A (en) * 1980-08-27 1982-10-19 Mitel Corporation Telephone call denial system
WO1987000376A1 (en) * 1985-06-28 1987-01-15 Terence John Newell Telephone line access control
GB2200516A (en) * 1987-01-27 1988-08-03 Richard Drewnicki Call barring apparatus
US4866762A (en) * 1988-04-04 1989-09-12 Pintar Robert R Apparatus for restricting telephone calls

Also Published As

Publication number Publication date
ES2070711R (en) 1997-01-01
ES2070711B1 (en) 1997-07-01

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Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 19950601

Kind code of ref document: R

Effective date: 19950601

FA2A Application withdrawn

Effective date: 19980805