Communication system control arrangement
US4720850A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Mar 14, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13541
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a switched integrated wideband and narrowband multiservices digital network (FIG. 1), the network control complex (612) includes a program-controlled call processing arrangement (800) that comprises a point-to-point call processing portion (8001) for handling point-to-point calls and a proxy vendor call processing portion (8002) for handling calls to broadcast program service vendors. For quick response to "channel change" requests from subscribers, the proxy vendor portion handles all calls within a single process (500). For ease of call control, the point-to-point portion handles each call via two processes (650, 660) one for each of the calling and called portions of each call. A message router (8000) receives messages from subscriber terminal equipment (400) requesting control functions for calls and routes them to the appropriate one of the proxy vendor and point-to-point processes. The message router also creates the point-to-point processes for new calls for which the processes are not yet in existence. Subscriber messages have two portions: a first portion requesting control functions for calls and a second portion identifying calls. Subscriber messages for both point-to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.