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We need to write an Asterisk module which, among other things, needs to wait for a specific tone and then continue. For example, "Wait for a 2000hz tone lasting 1 second", and "timeout if the tone isn't heard within 30 seconds".<BR>
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Does such an API call exist? Or any modules which do this?<BR>
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Thank you very much,<BR>
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Bryan Field-Elliot<BR>
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