Multiple appearance directory number support across packet- and circuit-switched networks
US6961332B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2001 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Nov 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1106
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides for a multiple appearance directory number (MADN) group including terminals on both the public switched telephone network (PSTN) and a packet-switched network. The terminals within the MADN group are preferably on the PSTN and a packet-switched network under the control of the PSTN. While call signaling is centralized and provided by the PSTN, a full complement of PSTN services are available to the terminals on the packet-switched network. With centralized call control and access to services from the PSTN, IP terminals on the packet-switched network are treated as if they were PSTN terminals by PSTN elements, and are capable of implementing PSTN features and functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.