SMS Notifications is the first service available for WP Rentals theme, offered through Rentals Club membership (FREE now in BETA VERSION).
With this option activated, users will receive SMS notifications for every WP Rentals theme notification (new booking request, booking request approved / rejected, invoice generated, booking request confirmed, private messages notifications, approved listings, membership activation or paid listing activation and many more). As admin you control for which notifications to send SMS and you can add your own text in each SMS as well.
The SMS features works using the Twilio API (the same company Airbnb or Uber use) which requires purchasing SMS credits from their platform. Click here for Twilio Pricing.