发明授权
US09055583B2 Communication link termination indication signal method and apparatus 有权
通信链路终止指示信号的方法和装置

Communication link termination indication signal method and apparatus
摘要:
Upon detecting at a two-way communication device that a communication link has been terminated, the two-way communication device can provide a unique corresponding signal (such as a unique audible signal) to indicate such termination. Pursuant to one approach, a plurality of such unique signals are available and a specific one of the available signals is selected for use in a given circumstance using a selection criteria of choice.
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