System for, and method of, managing voice congestion in a network environment
US5579301A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6497
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first voice channel transmits voice signals into a second voice channel through a plurality of network nodes and data links. Preferably the voice signals are in packets each having a plurality of bits containing voice information and each having at least one additional bit to indicate whether a congestion has been encountered at any of the nodes. Preferably the voice signals in each packet have a particular bandwidth and a particular compression. When a congestion of a packet is encountered at one of the nodes, the node produces at the additional bit in the packet an indication that congestion has occurred. The packet with this indication then passes through the nodes to the second channel. The second channel then produces and sends to the first channel signals acknowledging the reception of the packets and the encountering of congestion. The first channel then reduces the bandwidths of the signals in the packets transmitted to the second channel and increases the compression of the signals in the packets. When the second channel receives these packets without encountering any congestion for at least a particular period of time, it sends a congestion clear signal to the first cha…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.