A missed call service is an efficient, cost-effective communication tool that leverages missed calls as triggers for various actions. Businesses can use it to engage with customers, collect feedback, or provide information without incurring call charges. Customers dial a specific number, and the call disconnects automatically after one ring. This action triggers predefined responses, such as sending SMS notifications, initiating callbacks, or activating services. The service is widely used in marketing campaigns, lead generation, surveys, and customer support.