System for digital radio communication between a wireless LAN and a PBX
First Claim
1. A communication gateway for a wireless telephone system for communicating with a plurality of mobile units, each unit having a network address and a telephone extension address, said gateway including:
- a memory for correlating telephone extension addresses of said mobile units with network addresses of said mobile units, said gateway connected to an access point and a public switched network;
wherein said mobile units can provide telephone communication with other mobile units using said network addresses without using the gateway, and wherein said mobile units can receive telephone communication from said public switched network addressed to said telephone extension addresses via said gateway.
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Accused Products
Abstract
A wireless local area network for digital radio communication between remote devices and a PBX telephone system, wherein the remote devices can access and use the voice message features in the PBX and the data bases on a host computer and servers. A wireless phone is provided for voice and data communication through the PBX or a CO telephone line with remote locations or the Internet using digital data packets and standard Internet Protocol. In a preferred embodiment of the invention, the remote device is a cash register comprising a bar code scanner and a phone. Radio communication between the register and a host computer is carried out over two channels, a first channel for data communication and a second channel for voice communication.
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Citations
21 Claims
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1. A communication gateway for a wireless telephone system for communicating with a plurality of mobile units, each unit having a network address and a telephone extension address, said gateway including:
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a memory for correlating telephone extension addresses of said mobile units with network addresses of said mobile units, said gateway connected to an access point and a public switched network; wherein said mobile units can provide telephone communication with other mobile units using said network addresses without using the gateway, and wherein said mobile units can receive telephone communication from said public switched network addressed to said telephone extension addresses via said gateway. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless telephone system, comprising:
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a plurality of mobile units, each having a network address and a telephone extension address; and an interface unit connected to an access point, said interface unit including a memory for correlating telephone extension addresses of said mobile units and network addresses of said mobile units; wherein said mobile units can provide telephone communication with other mobile units using said network addresses without using the gateway, and wherein said mobile units can receive telephone communication from other mobile units addressed to said telephone extension addresses via said interface unit. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. In a local area network having at least one access point for providing wireless communication to mobile units, and a gateway connected to an access point and a public switched network, a method of providing telephone service to the mobile units, said method comprising:
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storing telephone extension numbers and network addresses assigned to the mobile units; receiving, for out-going calls, DTMF signals from the mobile units as data messages via said access point to establish external telephone connections from the mobile units to said public switched network; and
receiving, for incoming calls, signals from said public switched network representing telephone extension numbers and providing a correspondence between said telephone extension numbers and network addresses to establish telephone connections from said public switched network to the mobile units;wherein said mobile units can provide telephone communication with other mobile units using said network addresses without using the gateway. - View Dependent Claims (16, 17, 18, 19)
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20. A telephone system, comprising:
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a PBX having a gateway for providing a correspondence between telephone numbers, including telephone extension numbers, and network addresses; telephone extensions having telephone numbers connected to said PBX; at least one data communications access point connected to said gateway of said PBX; and a plurality of wireless digital phones, arranged for radio data communication with said access point and each having a network address corresponding to a telephone number; wherein said PBX receives telephone numbers corresponding to said wireless digital phones mobile units and establishes a connection to said wireless digital phone via said access point using said corresponding network address, and wherein said wireless digital phones generate DTMF signals corresponding to a telephone number of a telephone extension and provide said DTMF signals as a data message to said PBX via said access point to establish a connection to said telephone number; wherein said wireless digital phones can provide telephone communication with other wireless digital phones using said network addresses without using the gateway. - View Dependent Claims (21)
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Specification