I purchase Panasonic p91 before 15 days but , while calling the voice is not audible why it is happening like this

Hi Adarsh. Did you check if you have good network coverage when you made the call? Also, press volume up button to increase call volume. If you checked both, then it might just be a bad earpiece. If it's a bad earpiece, take your phone back to the store where you bought the phone. Good luck!

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