Wide area network (WAN)-arrangement
US5361259A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Feb 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13389
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A WAN is formed using Frame Relay Protocol and a telephone network interface unit. An originating LAN sends a message to a router which communicates with a telephone network interface unit using Frame Relay Protocol. The telephone network interface unit determines the destination of a packet received from the router by interpreting the Frame Relay Protocol, and it associates a phone number with that destination. The interface unit uses the phone number to establish at least one DSO connection over a digital telephone network to a destination network interface. A destination network interface unit receives the packet from the digital telephone network and provides the packet to a router which interfaces to the destination LAN. The network interface units add or drop additional DSO channels as required by the traffic load and thereby provide variable bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.