Toll-free telephonic communication method and device
US6463137B1 · kind B1 · utility
4Cited by
3References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/62
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is a method and device for toll-free telephonic communications. According to a method of the present invention, a caller dials a toll-free number to establish a connection with a telecommunications platform. The caller then enters an authorization code that the telecommunications platform validates. If the authorization code is valid, the telecommunications platform can connect the caller to a called party or record a message by the caller for later retrieval by the called party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.