Call conference within a home zone
US5987318A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A first mobile station is correlated with a second mobile station as a permitted home zone party. The second mobile station is in speech connection with another telecommunications party. In the event that the first mobile station wishes to join in on the conversation, the first mobile station simply transmits a selected service code A to the serving mobile switching center (MSC). The serving MSC retrieves the data correlating the first mobile station with the second mobile station, determines that the first mobile station is currently located within the same home zone, and conferences the first mobile station into the existing call connection involving the second mobile station by utilizing one of the call conference circuits. As an illustration, members of the same household can designate and correlate each other as permitted home zone parties. Thereinafter, whenever more than one members are within the designated home zone, and one is involved in a call connection, any other member can join in on the conversation by simply picking up a mobile station and dialing the service code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.