The SmartLine number does not support forwarding text messages directly to your phone. However, you can enable notifications to receive alerts whenever a new message arrives on your SmartLine number.
For more details on how to set this up, please read this article: https://support.referrizer.com/en/category/inbox/article/how-do-i-manage-texts-from-the-system-on-my-phone-iphone-and-android