The Realme 9 Pro is one of the best budget phones released on the market by Realme. The Realme 9 Pro has almost all the advanced features any modern-day android phone can have.
The Realme 9 Pro has Wifi calling feature available on it. That means you can use your Wifi network signal as your SIM card network coverage if your area is having issues with the SIM network. You can use the Wifi network signal as your SIM network connecting signal. But, your SIM card must have the balance to connect a call from your phone to another.