EPF: What is the missed call service that helps you find about the PF balance?

EPF: In order to avail the missed call facility, you need to have a mobile number activated with UAN, and one of the three (bank account, aadhaar or PAN) available against the UAN

EPF: What is the missed call service that helps you find about the PF balance?
EPF: In order to avail the missed call facility, you need to have a mobile number activated with UAN, and one of the three (bank account, aadhaar or PAN) available against the UAN