As a temporary workaround for the SMS limitation, I am using an app on our phones called Pushover. It works remarkably well for us.
In order to use it, you simply need to create a Pushover account, and create a Pushover App entry within your new Pushover account. This will provide you with the necessary tokens for configuring the follow Hubitat Device.
[UPDATE] Added link to current Pushover thread to make sure current code is used by new users.
