Patent · US Expired

Wireless centrex call return

US6711401B1 · kind B1 · utility

29Cited by
145References
42Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 13, 1999
Grant dateMar 23, 2004
Priority date
Expiry dateDec 13, 2019

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W4/06
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A communications system includes a dual mode mobile station and a home base station. Dual mode mobile station is operable selectively in CDMA and analog modes. Home base station includes circuitry for establishing wireless communications with mobile station in the analog mode, and circuitry for establishing communications with a wireline communications system, the base station allowing an exchange of information between mobile station and wireline system in the analog mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.