DE9103394U1 - - Google Patents
Info
- Publication number
- DE9103394U1 DE9103394U1 DE9103394U DE9103394U DE9103394U1 DE 9103394 U1 DE9103394 U1 DE 9103394U1 DE 9103394 U DE9103394 U DE 9103394U DE 9103394 U DE9103394 U DE 9103394U DE 9103394 U1 DE9103394 U1 DE 9103394U1
- Authority
- DE
- Germany
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/667—Preventing unauthorised calls from a telephone set
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/60—Means for supporting coupling part when not engaged
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9103394U DE9103394U1 (en) | 1991-03-15 | 1991-03-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9103394U DE9103394U1 (en) | 1991-03-15 | 1991-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9103394U1 true DE9103394U1 (en) | 1991-06-20 |
Family
ID=6865472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9103394U Expired - Lifetime DE9103394U1 (en) | 1991-03-15 | 1991-03-15 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9103394U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612485A1 (en) * | 1996-03-29 | 1997-10-02 | Deutsche Telekom Ag | Device for the external connection of at least one additional device to a digital telecommunication device |
-
1991
- 1991-03-15 DE DE9103394U patent/DE9103394U1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612485A1 (en) * | 1996-03-29 | 1997-10-02 | Deutsche Telekom Ag | Device for the external connection of at least one additional device to a digital telecommunication device |