System and method for efficient telephone call transfer
US6853718B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | May 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
During a telephone call, a transferring party performs an action to cause the telephone call to be transferred. The action causes a switch to send a query to a service control point (SCP) in a public-switched telephone network (PSTN). The SCP determines a transfer telephone number to which the telephone call is transferred. The transfer telephone number can be stored in a subscriber information table. The SCP determines the transfer telephone number and returns the transfer telephone number to the switch sending the query. The switch makes a telephone call to the transfer telephone number to cause a telephone associated with the transfer telephone number to ring. When the telephone associated with the transfer telephone number is answered, the transferring party disconnects from the telephone call to complete the transfer of the telephone call. A services node can also be used to determine the transfer telephone number. In addition, other telephone services, such as three-way calling can be selected by the transferring party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.