Alexa will notify if you miss a call

Firstly, you should create a Monkey here https://app.voicemonkey.io/ and set it up as in the instructions from the website. On the Alexa app, you can create a routine When: "Name of Monkey" is pressed Alexa will: Add Action, Alexa Says, Customized, "Add the message you want Alexa says". From: "Your Device"