There is a new technology that does everything SMS/text and QR codes can do but more and better. You put a specialized wi-fi router inside the home for sale. When potential buyers approach the home, they are sent an SMS/text message with a virtual tour link and other info about the home. They don't need to text a keyword to a short code are scan a QR code.
it also is great for open houses. Instead of a potential buyer leaving with a paper flyer, they leave with a video of the home on their phone. My seller clients love to see that I am using the latest technology to sell their home. I have also received some good leads from unrepresented buyers. In addition, the technology knows how long a potential buyer was at the house and how many times they returned.
I just started working for the comany, so if you have any questions, you contact me at firstname.lastname@example.org