Communication system having an automatic dialer
US4964159A · kind A · utility
34Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S379/904
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication system having an automatic dialer, which generates a signal for selection of a communication line from a plurality of communication lines belonging to a plurality of common carriers before communication is made between a calling subscriber and a called subscriber. The automatic dialer automatically transmits the signal for specifying one of a plurality of signal paths coupled to the called subscriber in addition to other necessary signals. The necessary signals may be automatically transmitted with the minimum dial number, resulting in easier operation of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.