DE2952814A1 - Monitoring device for monitoring telephone calls coming through a subscriber station - Google Patents

Monitoring device for monitoring telephone calls coming through a subscriber station

Info

Publication number
DE2952814A1
DE2952814A1 DE19792952814 DE2952814T DE2952814A1 DE 2952814 A1 DE2952814 A1 DE 2952814A1 DE 19792952814 DE19792952814 DE 19792952814 DE 2952814 T DE2952814 T DE 2952814T DE 2952814 A1 DE2952814 A1 DE 2952814A1
Authority
DE
Germany
Prior art keywords
monitoring
subscriber station
telephone calls
calls coming
monitoring device
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.)
Ceased
Application number
DE19792952814
Other languages
English (en)
Inventor
P De Toledo
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.)
Individual
Original Assignee
Individual
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 CH587878A external-priority patent/CH623695A5/fr
Application filed by Individual filed Critical Individual
Publication of DE2952814A1 publication Critical patent/DE2952814A1/de
Ceased legal-status Critical Current

Links

DE19792952814 1978-05-30 1979-05-25 Monitoring device for monitoring telephone calls coming through a subscriber station Ceased DE2952814A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH587878A CH623695A5 (de) 1978-05-30 1978-05-30
PCT/CH1979/000076 WO1979001145A1 (en) 1978-05-30 1979-05-25 Monitoring device for monitoring telephone calls coming through a subscriber station

Publications (1)

Publication Number Publication Date
DE2952814A1 true DE2952814A1 (de) 1981-01-08

Family

ID=25698566

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792952814 Ceased DE2952814A1 (de) 1978-05-30 1979-05-25 Monitoring device for monitoring telephone calls coming through a subscriber station

Country Status (1)

Country Link
DE (1) DE2952814A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826100A1 (de) * 1988-08-01 1990-02-08 Licentia Gmbh Gesteuerte telefonsperreinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514548A (en) * 1967-04-12 1970-05-26 Priva Phone Inc Telephone apparatus for discriminating between desired and undesired calls
DE2634112A1 (de) * 1976-02-02 1978-02-02 Int Mobile Machines Verfahren und schaltungsanordnung zum erkennen eines rufsignals
US4074078A (en) * 1975-03-17 1978-02-14 The Raymond Lee Organization, Inc. Telephone privacy device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514548A (en) * 1967-04-12 1970-05-26 Priva Phone Inc Telephone apparatus for discriminating between desired and undesired calls
US4074078A (en) * 1975-03-17 1978-02-14 The Raymond Lee Organization, Inc. Telephone privacy device
DE2634112A1 (de) * 1976-02-02 1978-02-02 Int Mobile Machines Verfahren und schaltungsanordnung zum erkennen eines rufsignals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826100A1 (de) * 1988-08-01 1990-02-08 Licentia Gmbh Gesteuerte telefonsperreinrichtung

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Legal Events

Date Code Title Description
8131 Rejection