To use Alexa with Wave Smart Home, you will need to enable the Alarm.com skill and then use correctly-formatted commands.
To enable the skill on the Alexa App: From the menu in top left, select Skills and Games, then use the magnifying glass in the top right corner to search for alarm.com. Select Alarm.com. Then enable this skill. You will be prompted to link your account; enter your Smart Home username and password to complete the linkage.
To enable the skill using voice: tell your Alexa enabled device, “Alexa, talk to Alarm.com”. Alexa will respond letting you know that your Alarm.com account needs to be linked. Open the Amazon Alexa app on your mobile device or go to Alexa.amazon.com on your web browser. On the Home dashboard, you will see an Alarm.com card at the top of the app with a Link Account button. Enter your Smart Home username and password to link.