ES458626A1 - Perfeccionamientos en aparatos para sostener cabezas detec- toras con relacion a superficies metalicas arqueadas cubier-tas por un revestimiento no metalico. - Google Patents

Perfeccionamientos en aparatos para sostener cabezas detec- toras con relacion a superficies metalicas arqueadas cubier-tas por un revestimiento no metalico.

Info

Publication number
ES458626A1
ES458626A1 ES458626A ES458626A ES458626A1 ES 458626 A1 ES458626 A1 ES 458626A1 ES 458626 A ES458626 A ES 458626A ES 458626 A ES458626 A ES 458626A ES 458626 A1 ES458626 A1 ES 458626A1
Authority
ES
Spain
Prior art keywords
test set
sender
pair
line
dedicated trunk
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
ES458626A
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of ES458626A1 publication Critical patent/ES458626A1/es
Expired legal-status Critical Current

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
    • H04M15/34—Charging, billing or metering arrangements for private branch exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

Perfeccionamientos en aparatos para sostener cabezas detectoras con relación a superficies metálicas arqueadas cubiertas por un revestimiento no metálico, caracterizados porque cada aparato comprende una caja, una cabeza detectora en la caja para situarse adyacente al revestimiento, y por lo menos un elemento de sustentación para sostener y situar la caja con relación a la superficie arqueada, teniendo el elemento de sustentación una superficie de perfil predeterminado para presentarla al revestimiento, teniendo la superficie perfilada un perfil en forma de V, cuando se observa paralela al eje geométrico de la superficie metálica arqueada cuyo perfil tiene dos superficies laterales curvadas definidas por curvas tangentes a los círculos de diferentes diámetros definidos por mandriles metálicos, encontrándose los centros de los círculos sobre un eje central de perfil y separándose la circunferencia de cada circulo sobre el eje central a partir de una referencia de cada circulo sobre el eje central a partir de una referencia para producir un efecto prácticamente constante sobre la cabeza detectora por acción de los mandriles
ES458626A 1977-04-13 1977-05-10 Perfeccionamientos en aparatos para sostener cabezas detec- toras con relacion a superficies metalicas arqueadas cubier-tas por un revestimiento no metalico. Expired ES458626A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1953277 1977-04-13
US05/832,942 US4159402A (en) 1977-04-13 1977-09-13 Means for identifying subscriber lines

Publications (1)

Publication Number Publication Date
ES458626A1 true ES458626A1 (es) 1978-07-01

Family

ID=40227600

Family Applications (1)

Application Number Title Priority Date Filing Date
ES458626A Expired ES458626A1 (es) 1977-04-13 1977-05-10 Perfeccionamientos en aparatos para sostener cabezas detec- toras con relacion a superficies metalicas arqueadas cubier-tas por un revestimiento no metalico.

Country Status (3)

Country Link
US (1) US4159402A (es)
CA (1) CA1074426A (es)
ES (1) ES458626A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511108A (en) * 1991-05-31 1996-04-23 Itronix Corporation Apparatus and method for performing and controlling testing of electrical equipment
US5432705A (en) * 1991-05-31 1995-07-11 Itronix Corporation Administrative computer and testing apparatus
JP2836341B2 (ja) * 1992-02-24 1998-12-14 富士通株式会社 打合電話回路
US6438212B1 (en) 1997-09-18 2002-08-20 Verizon Services Corp. Automated telephone line test apparatus with intelligent diagnostic function
KR100350488B1 (ko) * 2000-05-24 2002-08-28 삼성전자 주식회사 브이.아이.피 게이트웨이의 발신 호 처리방법
KR100407348B1 (ko) * 2001-12-27 2003-11-28 삼성전자주식회사 보이스 오버 인터넷 프로토콜 호 서비스 방법
US6940949B2 (en) * 2002-10-29 2005-09-06 Bellsouth Intellectual Property Corporation Ring, tip, ground testing tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700830A (en) * 1970-07-07 1972-10-24 Bell Canada Automatic call through test set
US3904830A (en) * 1972-07-03 1975-09-09 Mek Tronix Lab Call tracing and identification system
US3885108A (en) * 1973-04-16 1975-05-20 Joseph Zock Telephone dialing system
US3973090A (en) * 1973-08-16 1976-08-03 Hewlett-Packard Company Telephone number assignment record verification apparatus and method
US3898396A (en) * 1974-09-16 1975-08-05 Cognitronics Corp Automatic verification announcer

Also Published As

Publication number Publication date
CA1074426A (en) 1980-03-25
US4159402A (en) 1979-06-26

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