A. 1. Check your internet connection: Ensure you have a stable Wi-Fi or mobile data connection. You can test your connection by streaming a video or browsing the web. 2. Restart your device: Sometimes, a simple restart can resolve connectivity issues. 3. Reduce background data usage: Close other apps that may be using bandwidth. Go to Settings > Network & internet > Data usage and restrict background data for other apps.

B. 4. Switch to a different network: If you're on Wi-Fi, try switching to mobile data or vice versa to see if the call quality improves.