Telephone call setup procedure
US6377576B1 · kind B1 · utility
21Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/203
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An improved technique for connecting calls through a telephone network is disclosed wherein a data signal transmitted from a computer over- a separate network is used to instruct the telephone switch to make the desired connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.