• Check for obstructions in your microphone and earpiece.
•  Turn on the high-quality calling options.
  
• Make use of Wi-Fi calling.
• Make voice calls over the internet with apps.
• when you're on the phone It doesn't belong there, whether it's plastic, a case, dirt, paper, gum, or anything else. Maintain a clean and clear phone at all times.
• The call settings on your phone differ depending on your carrier, phone maker, phone model, and Android version loaded. Most manufacturers, including as Samsung, Sony, and LG, let you adjust the voice quality settings from the main Settings menu.
• These are termed Noise Reduction and Personal Call Settings on Samsung Galaxy handsets, while they are accessible in the Personalize Call Settings page on LG phones. When these options are selected, the phone will be able to send and receive audio in higher quality.

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