4 ms·

And it beeps, and the audio from the other end starts coming through the echo's speaker. There is just about no way to know someone dropped in on you.

• smnrchrds 8y ago
  But is this behaviour implemented in hardware or software?
  • withinrafael 8y ago
    This feature is configured via its software.
  • ehsankia 8y ago
    My understanding is that the light at the very least was hardware. Sound can be disabled.