Voice over internet protocol
US6999431B2 · kind B2 · utility
17Cited by
30References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2001 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Nov 4, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/203
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A voice over Internet protocol (VOIP) directory service for communications users of an enterprise locates a telephone or work station of a called party for the purpose of setting up real-time communication, either from a pulse code modulation (PCM) telephone or from an Internet protocol (IP) telephone, or a computer by way of the world wide web, using a common directory database. Once the directory entry has been found, it may be immediately called through use of translated addresses assigned to the selected called party device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.