When using RC Video phone audio please replace the voice that says (extremely loudly) 'muted' and 'unmuted' with a much much quieter and less obnoxious beep or bloop noise. Most modern meeting audio systems use short sounds to indicate this, and users can easily adapt to it and understand which tone means which. The voice takes forever to say what button you pressed and is so loud every meeting becomes a game of trying to time your muting/unmuting just at the right time so you can hear AND be heard, which is annoying.