a sound appear when I receive any call or when I am dial ing to another person and when he receive my call then also the sound appearing that's like 'ting ...ting...ting' , my model is m30s. so how can I solve this ?
it is bogus, other phones like oppo mi etc is running smoothly in low internet (with three sticks of tower) my m30s is then buffering, samsung developer s should try to solve it.
