Personal user network (closed user network) PUN/CUN
US6252952A · kind A · utility
317Cited by
30References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Dec 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An Internet Protocol Telephony Network and public switched telephone network, in which closed user groups may be dynamically defined and modified to take advantage of special billing within the closed user groups. Abbreviated dialing within the closed user groups may also be used to make dialing more convenient. The closed user groups may include members anywhere in a global network, and may take advantage of the special billing, regardless of whether the members are located in different states and/or countries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.