Dialed number to function translator for telecommunications switching system control complex
US4259549A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1977 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Sep 9, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunication switching system adapted to be connected to lines and trunks has a digital switching network and a control complex for executing system operational functions by program operated processors in response to dialed numbers received from stations in separate customer groups. Customer groups are groups of stations on discrete sets of lines served by the system, all customer groups sharing the hardware forming said switching system while all operational functions are normally separately executed for each customer group in response to dialed numbers included within a separate comprehensive number plan for each customer group. Representative system operational functions include processing standard calls between stations on lines in the same customer group and processing conference calls between multiple stations. The control complex provides a dialed number to function translator in the form of addressable data base memory which provides function-instruction data in a multiple level table structure of separate groups of locations for each customer group of stations, each location having coded electrical signals representing an identifier word including an instruction to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.