Supervisory tone generation

What does it do?

The supervisory tone generator may be configured to generate most of the world's telephone supervisory tones - things like ringback, busy, number unobtainable, and so on. It uses tree structure tone descriptions, which can deal with quite complex cadence patterns.

How does it work?

Generated on Tue Oct 7 20:25:52 2008 for spandsp by  doxygen 1.5.6