Telephone voice mail delivery system
US5638424A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1996 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Feb 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/533
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and a method are disclosed for establishing communication between a sending system and a receiving system. Upon initiation of the communication, the sending system sequentially monitors the receiving system for a response from one of a human interface, a non-cooperating system or a cooperating system. If a response from a human interface within the receiving system is received by the sending system, the sending system transmits a message to a human. If a response is not received from a human interface but is received from a non-cooperating system within the receiving system, the sending system transmits a message to an answering machine. If a response is not received from a human interface or a non-cooperating system, but is received from a cooperating system within the receiving system, information is exchanged between the sending system and the cooperating system in an attempt to establish communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.