A:AnswerI believe the only way to do that is to have the Alexa app on your phone and be connected to said echo dot you want to talk to. it uses a feature called "drop in" to be able to talk to whoever is close to Alexa. and so there is a way to set up the echo dot to be able to call your phone through the Alexa app .hope this helps
A:AnswerYes the echo dot can turn lights on and off. You can also go on YouTube. I got my plugs off of marketplace cuz it was cheaper also my power strips from Amazon. I didn't do the SMART light bulbs because at the time you needed a hub. Now they have them without hubs usage. But you can also switch out your light switch in the wall but if you want to have something that's plugged up you can use the power strip or plugs.
A:AnswerYes the Alexa can be used as an alarm clock timer calendar and a lot of other good features. You can also go in your settings to increase the volume as the alarm goes off. You can also set different sounds like mines is set for hotel Transylvania the from the movie. Download the Alexa app to your phone.