Caller ID logging: entry storage on a per line basis
US6134308A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/575
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone system with a caller ID logging feature includes a plurality of telephone stations which share a plurality of telephone lines connected to the telephone system. Each one of the plural telephone lines is associated with one or more of the telephone stations. A control processor (CPU) monitors the incoming calls on the telephone lines connected to the telephone system, and also receives caller ID information from the Central Office of the telephone service provider. For unanswered incoming calls and answered calls which are to be stored, the CPU stores the associated caller ID information in a memory as a caller ID record including data indicating the telephone lines on which the incoming call was received. The stored caller ID records for each telephone line are accessible from telephone stations that are associated with that telephone line. Therefore, only one record is required which all users may access, thereby increasing the efficiency of the memory over prior art systems. The memory includes a minimum capacity per line so that a minimum number of records are allocated for each telephone line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.