spandsp 0.0.6pre21 - A DSP library for telephony
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SpanDSP is a library of DSP functions for telephony, in the 8000 sample per
second world of E1s, T1s, and higher order PCM channels. It contains low
level functions, such as basic filters. It also contains higher level
functions, such as cadenced supervisory tone detection, and a complete 
software FAX machine.
The software has been designed to avoid intellectual property issues, using
mature techniques where all relevant patents have expired. See the file
DueDiligence for important information about these intellectual property issues

The library is licenced under the LGPL 2.1 licence. The test suite, and some
support programs are licenced under the GPL 2 licence. The full text of these
licences can be found in the file COPYING.
