Here have some more
DTMF (with examples): sigidwiki.com/…/Dual_Tone_Multi_Frequency_(DTMF)
Decoder options: github.com/EliasOenal/multimon-ng www.w1hkj.org/files/fldigi/
Or decode by hand using a Spectral display, in some cases other audio effects can negatively impact the precision of automated detection.