10 lines
542 B
Text
10 lines
542 B
Text
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SpanDSP is a library of DSP functions for telephony, in the 8000
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sample per second world of E1s, T1s, and higher order PCM channels.
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It contains low level functions, such as basic filters. It also
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contains higher level functions, such as cadenced supervisory tone
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detection, and a complete software FAX machine. The software has
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been designed to avoid intellectual property issues, using mature
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techniques where all relevant patents have expired. See the file
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DueDiligence for important information about these intellectual
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property issues.
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