How I could get back my mobile sound?

Have lost my mobile sound. The person I called or he dialled me cannot here my voice. So what should i do to increse volume if my phone sound or:Have

Have lost my mobile sound. The person I called or he dialled me cannot here my voice. So what should i do to increse volume if my phone sound

or:Have lost my mobile sound. The person I called or he dialled me cannot here my voice. So what should i do to increse volume if my phone sound

Tags:sound,