Calling line identification adjunct for use with a communication system
US5479493A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1992 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | May 21, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/575
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An adjunct unit provides Incoming Caller Line Identification (ICLID) capability for a communication system. The adjunct unit interposed between the control unit and station sets of a communication system obtains ICLID from ringing central office lines and monitors signalling between the control unit and station sets to determine which stations are to receive the ICLID information. Using prestored database information the ICLID information can be used to obtain the calling party name for output to the station sets. The adjunct unit also outputs ICLID information to an application processor which stores calling records for the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.