Method for controlling electronic telephone switches
US5450475A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Mar 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/72
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for controlling electronic telephone switches includes linking a plurality of telephone switches to each other over a digital network and coupling one of the telephone switches to a voice mail system (VMS) having a mailbox. An identifier of the VMS is stored in the telephone switches. A first user's telephone call is routed from a telephone switch coupled to the first user to a telephone switch coupled to a second user when the first user requests to be connected with the second user. An identifier of the second user is routed from the telephone switch coupled to the second user to the VMS based upon the VMS identifier and, the first user's call is connected to the VMS if the second user is a holder of the mailbox. Information from the first user is forwarded to the VMS and stored in the mailbox. Data representing that the VMS has the information in the mailbox from VMS is transmitted to the second user based upon the second user's identifier. The stored information is routed to the second user at the second user's request and the information stored in the mailbox is erased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.