Amazon will provide Alexa voice calls to all Echo speaker owners
After the update, you will be able to initiate voice calls with other Echo device owners or Alexa app users, provided they enabled the feature on their speakers. Voice messages are left by recording a clip and sending it to someone from your address book. The new Echo Show also gets the option for video calls, facilitated by its touchscreen.
Amazon basically made an instant voice messenger out of the Echo hardware and app ecosystem. It's one of the many possible uses for this technology that's sure to get users excited.