GB2205016B - Automatic telephone answering device - Google Patents
Automatic telephone answering deviceInfo
- Publication number
- GB2205016B GB2205016B GB8706621A GB8706621A GB2205016B GB 2205016 B GB2205016 B GB 2205016B GB 8706621 A GB8706621 A GB 8706621A GB 8706621 A GB8706621 A GB 8706621A GB 2205016 B GB2205016 B GB 2205016B
- Authority
- GB
- United Kingdom
- Prior art keywords
- answering device
- automatic telephone
- telephone answering
- automatic
- telephone
- 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 - 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
- H04M1/663—Preventing unauthorised calls to a telephone set
- H04M1/665—Preventing unauthorised calls to a telephone set by checking the validity of a code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8706621A GB2205016B (en) | 1987-03-20 | 1987-03-20 | Automatic telephone answering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8706621A GB2205016B (en) | 1987-03-20 | 1987-03-20 | Automatic telephone answering device |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8706621D0 GB8706621D0 (en) | 1987-04-23 |
GB2205016A GB2205016A (en) | 1988-11-23 |
GB2205016B true GB2205016B (en) | 1990-11-21 |
Family
ID=10614305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8706621A Expired - Lifetime GB2205016B (en) | 1987-03-20 | 1987-03-20 | Automatic telephone answering device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2205016B (en) |
-
1987
- 1987-03-20 GB GB8706621A patent/GB2205016B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB8706621D0 (en) | 1987-04-23 |
GB2205016A (en) | 1988-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |