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DTMF-Source may have the following values: APP : injected by application (send_dtmf, etc) ENDPOINT : detected by endpoint signaling (like SIP INFO) INBAND_AUDIO : detected by start_dtmf, spandsp_start_dtmf, etc RTP : detected as 2833/4733 telephone event UNKNOWN : unknown source One possible use of this header is to determine telephone events are being received, and if so, disable inband detection.
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Description
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unl
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