GB2243050B - Telephone call control device and method - Google Patents
Telephone call control device and methodInfo
- Publication number
- GB2243050B GB2243050B GB9008465A GB9008465A GB2243050B GB 2243050 B GB2243050 B GB 2243050B GB 9008465 A GB9008465 A GB 9008465A GB 9008465 A GB9008465 A GB 9008465A GB 2243050 B GB2243050 B GB 2243050B
- Authority
- GB
- United Kingdom
- Prior art keywords
- control device
- call control
- telephone call
- telephone
- control
- 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 - Fee Related
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
-
- 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
- H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Devices For Supply Of Signal Current (AREA)
- Facsimiles In General (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9008465A GB2243050B (en) | 1990-04-12 | 1990-04-12 | Telephone call control device and method |
PCT/GB1991/001045 WO1993000762A1 (en) | 1990-04-12 | 1991-06-27 | Telephone call control device |
EP19910911777 EP0545937A1 (en) | 1990-04-12 | 1991-06-27 | Telephone call control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9008465A GB2243050B (en) | 1990-04-12 | 1990-04-12 | Telephone call control device and method |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9008465D0 GB9008465D0 (en) | 1990-06-13 |
GB2243050A GB2243050A (en) | 1991-10-16 |
GB2243050B true GB2243050B (en) | 1994-06-29 |
Family
ID=10674434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9008465A Expired - Fee Related GB2243050B (en) | 1990-04-12 | 1990-04-12 | Telephone call control device and method |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0545937A1 (en) |
GB (1) | GB2243050B (en) |
WO (1) | WO1993000762A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0632630B1 (en) | 1993-06-29 | 2001-10-31 | Canon Kabushiki Kaisha | Data communication apparatus with call limiting function |
JP2677191B2 (en) * | 1994-03-15 | 1997-11-17 | 日本電気株式会社 | CDMA communication system |
GB2355864A (en) * | 1999-10-27 | 2001-05-02 | R W Data Ltd | Switched data outlet socket assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3824341A (en) * | 1972-05-16 | 1974-07-16 | Xerox Corp | Data communication system |
US4856049A (en) * | 1988-03-18 | 1989-08-08 | Jerry R. Iggulden | Single line compatible fax system |
GB8901680D0 (en) * | 1989-01-26 | 1989-03-15 | Marten Brian M L | Call control device for telephones |
DE3922292C1 (en) * | 1989-07-04 | 1991-01-10 | Fritz Buehler Kommunikationstechnik, 1000 Berlin, De | Dial lock for telephone subscriber's appts. - has call identifying circuit preventing dial tone detecting circuit operating exchange line connection switch |
-
1990
- 1990-04-12 GB GB9008465A patent/GB2243050B/en not_active Expired - Fee Related
-
1991
- 1991-06-27 WO PCT/GB1991/001045 patent/WO1993000762A1/en not_active Application Discontinuation
- 1991-06-27 EP EP19910911777 patent/EP0545937A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0545937A1 (en) | 1993-06-16 |
GB9008465D0 (en) | 1990-06-13 |
WO1993000762A1 (en) | 1993-01-07 |
GB2243050A (en) | 1991-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950412 |