How Do I Receive SMS Text Messages In OS X Messages?
You can forward SMS text messages from your iPhone to the Messages app on your Mac as long as you iOS 8.1 or later and OS X Yosemite or later. Open the Settings on your iPhone and go to Messages > Text Message Forwarding. You will see a list of the devices that are setup to receive iMessages. Just switch the slider on for each device that you would like to have SMS text messages forwarded to and you should be all set.