Call processing control system
US5333133A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Apr 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/0016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A control system for processing calls comprising a call handling device and a device controller that are each connected to a network via a call connection interface that permits establishing and releasing a network connection, participation with another call connection interface in the same network connection, and either control over a network connection when the interface is the sole interface participating in that connection or control over a network connection to drop the last leg added to a network connection, the device controller and call handling device sending messages to each other over a message transfer interface. Also disclosed are a system for shifting control of a network connection and a system for monitoring the state of a network connection from a network interface that is not actively engaged in the network connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.