Method and apparatus for providing a plurality of special services
US4567323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1983 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Jul 12, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
For use with a telephone system serving a plurality of stations, method and apparatus is disclosed for providing a plurality of special services by designating a memory dedicated to a particular station for a selected one of the services on a per call basis. Responsive to a call between a particular one and a specific calling/called one of the stations, a memory dedicated to the particular station is designated for a selected calling/called station special service. The directory number of the specific calling/called station is also stored in the designated memory for subsequently activating the selected service. Responsive to a predetermined activation code entered at the paticular station, the selected special sevice is activated using the stored directory number of the specific calling/called station. When the specific station is in a busy condition, completion of the selected special service is delayed until both the particular and the specific stations are in an idle condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.