If you have installed the Alexa app on your smart-phone and used it to set-up your Echo Dot. That is it as far as recognising devices. The Alexa app can help with Alexa enabled devices, but I don't think your Mac or Android phone is the sort of device that Alexa app recognises. It is for "Alexa" enabled devices.
At the end of the day, what is it you are trying to achieve?