Thanks kojacker, yes its on /home/opt/usr/bin/
i solved it, now i can run it well
im waiting for the next release..

if you mind, i want to give a suggestion for the next updates.
trigger answer button to play audio files in low volume (optional). example : a person talking audio that could be from many sources, recorded files for instance, so that people near us can hear it but faintly. so they are convinced its a real call thank you