Patent ID: 8688107
Filing Date: 2014-04-01
Classification: H04L,H04W

Abstract:
1. A method of voice bridging user radios in multiple radio communication networks each of which networks operates according to a different radio transmission protocol that is not compatible with the protocols of the other networks, comprising: providing a number of gateway network radios each of which is configured to operate according to a radio transmission protocol of an associated one of two or more radio communication networks, and the protocols of the communication networks are not compatible with one another; defining an audio terminal of each gateway network radio for producing first voice or audio signals when detected by the network radio from radio transmissions of user radios in the communication network associated with the gateway network radio; defining a microphone terminal of each gateway network radio for receiving second voice or audio signals for transmission by the network radio to the user radios in the communication network associated with the network radio; providing a voice bridging gateway (VBG) server having a number of server ports each of which corresponds to one of the radio communication networks and is configured for coupling to a gateway network radio associated with the corresponding radio communication network, wherein each server port is operative for (a) receiving first signals corresponding to the first voice or audio signals produced from the audio terminal of the associated network radio, and (b) producing second signals corresponding to the second voice or audio signals for applying to the microphone terminal of the associated network radio; and configuring the VBG server to implement a private branch exchange (PBX) application for voice bridging user radios operating in a given one of the radio communication networks, with the user radios operating in a selected one or more of the other communication networks in response to a corresponding configuration command identifying the communication networks to be bridged, including; switching the first voice or audio signals received at the server ports coupled to the gateway network radios associated with the other selected radio communication networks, if any, to the server port corresponding to the given communication network for applying as the second signals to the microphone terminal of the corresponding network radio, thus allowing user radios in the given communication network to receive and detect the first voice or audio signals originating from the user radios in the other selected communication networks; and switching the first voice or audio signals received at the server port coupled to the gateway network radio associated with the given communication network, to the server ports corresponding to the other selected communication networks for applying as the second signals to the microphone terminals of the network radios associated with the other selected communication networks, thus allowing user radios in the other selected communication networks to receive and detect the first voice or audio signals originating from the user radios in the given communication network.