Methods and apparatus for performing primary rate interface (PRI) B-channel direct connectivity in an integrated services digital network (ISDN) communications system
US6549535B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0464
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for enabling a program controlled switching system to setup a basic call directly to a specific B-Channel on an ISDN Primary Rate Interface (PRI) via a call initiated by line side equipment subtending the switch with the PRI and/or via a call initiated by equipment anywhere in the Public Switched Telephone Network (PSTN) and routed to the switch with the PRI. A primary application for such methods and apparatus is within Data Tandem Switches/Internet Concentrator Switches and End Office Switches with PRI connections for Internet Service Providers. For example, by facilitating a direct connection to a specific B-Channel using the invention, modem pool providers can quickly and efficiently verify the functionality of specific channels and their associated modems, as well as maintain and test other equipment and software associated a specific PRI B-Channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.