Phone DTMF Tones with SoX

#DTMF Tones with SoX
play -n synth 10 sin 350 sin 440 remix - # North American Dial Tone
play -n synth 2 sin 440 sin 480 remix - # North American Ring Tone

# There are 16 possible combinations of DTMF signals that represent numbers, letters, and characters.
play -n synth 0.1 sin 697 sin 1209 remix - #1
play -n synth 0.1 sin 697 sin 1336 remix - #2
play -n synth 0.1 sin 697 sin 1477 remix - #3
play -n synth 0.1 sin 697 sin 1633 remix - #A
play -n synth 0.1 sin 770 sin 1209 remix - #4
play -n synth 0.1 sin 770 sin 1336 remix - #5
play -n synth 0.1 sin 770 sin 1477 remix - #6
play -n synth 0.1 sin 770 sin 1633 remix - #B
play -n synth 0.1 sin 852 sin 1209 remix - #7
play -n synth 0.1 sin 852 sin 1336 remix - #8
play -n synth 0.1 sin 852 sin 1477 remix - #9
play -n synth 0.1 sin 852 sin 1633 remix - #C
play -n synth 0.1 sin 941 sin 1209 remix - #*
play -n synth 0.1 sin 941 sin 1336 remix - #0
play -n synth 0.1 sin 941 sin 1477 remix - ##
play -n synth 0.1 sin 941 sin 1633 remix - #D