NO780319L - Anordning for tyveriovervaakning over telefonlinje - Google Patents
Anordning for tyveriovervaakning over telefonlinjeInfo
- Publication number
- NO780319L NO780319L NO780319A NO780319A NO780319L NO 780319 L NO780319 L NO 780319L NO 780319 A NO780319 A NO 780319A NO 780319 A NO780319 A NO 780319A NO 780319 L NO780319 L NO 780319L
- Authority
- NO
- Norway
- Prior art keywords
- subscriber
- high potential
- terminal
- sent
- signal
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 claims description 22
- 238000011835 investigation Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims 1
- 239000013256 coordination polymer Substances 0.000 description 5
- 238000007514 turning Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- MZAGXDHQGXUDDX-JSRXJHBZSA-N (e,2z)-4-ethyl-2-hydroxyimino-5-nitrohex-3-enamide Chemical compound [O-][N+](=O)C(C)C(/CC)=C/C(=N/O)/C(N)=O MZAGXDHQGXUDDX-JSRXJHBZSA-N 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- HCUOEKSZWPGJIM-YBRHCDHNSA-N (e,2e)-2-hydroxyimino-6-methoxy-4-methyl-5-nitrohex-3-enamide Chemical compound COCC([N+]([O-])=O)\C(C)=C\C(=N/O)\C(N)=O HCUOEKSZWPGJIM-YBRHCDHNSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/007—Telephonic communication systems specially adapted for combination with other electrical systems with remote control systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Selective Calling Equipment (AREA)
- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80359477A | 1977-06-06 | 1977-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO780319L true NO780319L (no) | 1978-12-07 |
Family
ID=25186954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO780319A NO780319L (no) | 1977-06-06 | 1978-01-27 | Anordning for tyveriovervaakning over telefonlinje |
Country Status (4)
Country | Link |
---|---|
BR (1) | BR7802632A (de) |
DE (1) | DE2824169A1 (de) |
DK (1) | DK48878A (de) |
NO (1) | NO780319L (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3039981C2 (de) * | 1980-10-23 | 1984-05-03 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Wähleinrichtung mit Rufnummern- bzw. Kennungsspeicher |
DE3275802D1 (en) * | 1981-12-29 | 1987-04-23 | Ass Intercommunale Electric | Remote control device through the telephone network |
FR2649520A1 (fr) * | 1989-07-10 | 1991-01-11 | Hallaire Bertrand | Installation de protection de materiel electrique par neutralisation |
-
1978
- 1978-01-27 NO NO780319A patent/NO780319L/no unknown
- 1978-02-02 DK DK48878A patent/DK48878A/da not_active Application Discontinuation
- 1978-04-27 BR BR787802632A patent/BR7802632A/pt unknown
- 1978-06-02 DE DE19782824169 patent/DE2824169A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DK48878A (da) | 1978-12-07 |
DE2824169A1 (de) | 1978-12-14 |
BR7802632A (pt) | 1979-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6266397B1 (en) | Interfacing device to be used with a telephone system terminal for transmitting extended station information to a public safety answering point | |
US4955047A (en) | Automated attendant with direct inward system access | |
US4841560A (en) | Direct access test unit for central office | |
EP1826997B1 (de) | Zentrale Überwachungsstation mit Verfahren zur Anrufverarbeitung aus Basis von Anrufquellenidentifikationsinformationen | |
JPH05504877A (ja) | 呼インタセプタ | |
US6804329B2 (en) | Methods and apparatus for enabling a non-DID station of a PBX or MLTS to receive a PSAP call back | |
JPS61500094A (ja) | 呼追跡サ−ビスを提供するための方法と装置 | |
NO780319L (no) | Anordning for tyveriovervaakning over telefonlinje | |
US3092689A (en) | Automatic registrar | |
US3508011A (en) | Arrangement enabling a telephone subscriber to block himself against terminating calls | |
US3327064A (en) | Small hotel-motel private branch exchange | |
US3331926A (en) | Automatic telephone system having restricted service means | |
US4872194A (en) | Method for transmission of alarm signals utilizing an entrance telephone system | |
US3176078A (en) | Automatic telecommunication switching systems | |
US3137770A (en) | Telephone call holding arrangement | |
GB588563A (en) | Improvements in or relating to telephone systems | |
US5065424A (en) | Apparatus for servicing telephones from a remote location | |
KR950004414B1 (ko) | 정보통신장치 | |
JP2875371B2 (ja) | ダイヤルイン内線選択番号切替方式 | |
EP1283635A1 (de) | Verfahren und System zur Dezentralisierung der Vermittlungsplätze einer Fernsprechvermittlungsanlage und zur ferngesteuerten Bearbeitung von zu einer Ortvermittlungsstelle adressierten Anrufen | |
JP3334529B2 (ja) | ボタン電話装置 | |
JPH04246928A (ja) | ページャー呼出し方式 | |
EP0182780B1 (de) | Türfernsprecheinrichtung und übertragungsverfahren für warnungssignale | |
US2395798A (en) | Traffic control system | |
JP3338242B2 (ja) | 交換システム |