An all-in-one headset worn on the user's head, comprises a head band, a first housing arranged at the head band, a communication unit having selectable at least two communication channels and selectable at least two communication modes, an operating panel mounted on the outside wall of the first housing for selecting one communication channel and one communication mode, an ear-speaker mounted on the inside wall of the first housing, a microphone, a second housing for housing the microphone, a boom member for supporting the second housing to the first housing, an indicating unit for indicating the indication indicative of the selected communication channel and the selected communication mode.


< Cordless identification security system and method

< Call waiting calling party defined content

> Feedback control of call processing in a communication system switch with script selection based on assigned weightings

> Method and system for refilling mobile telephone prepaid phone cards via electronic distribution of refill codes

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