Call interceptor
US4582957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1982 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Dec 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/54
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Automatic telephone answering equipment is disclosed which is associated with a telephone set connected to a switching system along with other telephone sets, and the answering equipment functions with central message recording equipment which is also connected to the switching system. Unanswered incoming calls originating from within or without the switching system are answered by the automatic answering equipment which then transfers the call to either another of the telephone sets or to the message recording equipment, as selected by the user of the answering equipment. When the call is transferred to the central message recording equipment the identity of the telephone set to which the call was directed is forwarded to the recording equipment. Only upon the calling party recording a message in the central message recording equipment, the recording equipment uses the called telephone set identity to call the originally called telephone set. Upon the telephone answering equipment answering the call from the message recording equipment the recording equipment sends a signal which causes a message waiting visual indication to be provided at the answering equipment. Thereafter, in r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.