Method to solve the multi-path and to implement the roaming...

Details Method to solve the multi-path and to implement the roaming... Method to solve the multi-path and to implement the roaming...

2007-02-06

2007-02-06

D'Agosta, Steve M. (Department: 2617)

Telecommunications

Radiotelephone system

Including private cordless extension system

C455S426200, C455S554100, C455S554200, C455S555000, C455S561000, C455S562100, C455S166200, C455S411000, C455S437000, C455S446000

Reexamination Certificate

active

10684096

ABSTRACT:
A telecommunication system intended for providing telecommunication services at a semiconductor manufacturing plant under the circumstances of shielded areas of clean rooms comprises a GSM base station installed at the plant and equipped with a plurality of low power antennas, a private branch exchange and at least two dedicated lines of E1 type connecting the base station and the PBX to a public switched telephone network. Software incorporated in the base station and PBX allows for telecommunication connections set up at the plant to use abbreviated four-digit numbers for both wireless mobile stations and wired stations, while keeping the possibility to reach a mobile station, even if it is outside the plant at the time of the connection, dialing the abbreviated four-digit number.

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