Personalized telephone for automatic access to operator services
US4947422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M17/023
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone set for automatically accessing operator service facilities in response to a user initiating a long distance type of telephone call. The access of the operator services is automatic and transparent to the user. After the user dials the "1" or similar long distance designation, the area code and a seven-digit telephone number of the called party, the telephone set stores such information, and in response thereto outpulses a predefined telephone number of the operator services. The telephone set responds to a precision dial tone transmitted as an acknowledgment by the operator services, and outpulses first an internally stored telephone set identificaiton number, followed by the area code and seven-digit number input by the calling party. Such outpulsed information appears on a video terminal of the operator services, whereupon the calling party and an operator can discuss billing of the telephone call, as well as completion thereof to the called party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.