Steve Underwood bc13e944c6 Changes to the signaling tone detector to detect concurrent 2400Hz + 2600Hz
tones. This passes voice immunity and other key tests, but it bounces a bit
when transitions like 2400 -> 2400+2600 -> 2600 occur. Transitions between
tone off and tone on are clean.
2010-06-06 22:24:20 +08:00
..
2009-04-28 14:42:18 +00:00
2009-12-23 01:38:36 +00:00