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In-band transmission of TTY/TTD signals for systems employing low bit-rate voice compression
In-band transmission of TTY/TTD signals for systems employing low bit-rate voice compression
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机译:适用于采用低比特率语音压缩的系统的TTY / TTD信号的带内传输
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摘要
A method, system, and software product for transmitting TTY/TDD signals in a system employing low bit-rate voice compression are disclosed. The method includes receiving an input signal and generating a teletypewriter (TTY) indicator signal from the input signal. Whether or not the input signal is a TTY signal including a TTY character, is determined based on the TTY indicator signal. A TTY packet including the TTY character of the TTY signal is constructed and transmitted if the input signal is determined to be a TTY signal. A method, system, and software product for receiving and decoding TTY/TDD signal is also disclosed.
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