The call will be sent to the person’s Echo device and the Alexa app on their phone, allowing them to choose how to answer. (Credit: PCMag / Amazon)To drop in on an Echo device within my household, I can say, "Alexa, drop in on [name of device]." (This can also be enabled in the Alexa app; go to More > Settings > Communication > Enhanced Features and turn on Enabled.) To allow calls and other notifications again, say "Alexa, turn off Do Not Disturb.” To place a call to someone in my phone's contact list, I say "Alexa, call [name of contact]."