My phone i bought as tokunbo frm phone dealers is having ths fault dat wen making calls, my receipient couldnt hear me until i shout so loud bt i cn hear them clearly,pls anyone wt clue of wat might b d problem and solution. The phone is sonyericsson k810!. Ur suggestions wl b highly appreciated.

Just take it to a phone repairer

U can repair it for abt =N=400naira

The internal mouth piece of ur fone is faulty,

Classic case of one chance.this problem is common to SE K-series phones where the internal microphone shows signs of wear and tear after rigorous usage.
Repairing it MIGHT not provide an ultimate solution because the problem tends to recur.
Never buy a second new SE phone again.For now,try managin' your loudspeaker or get an earpiece.

Thnks u all for ur candid advice.i wl take it 2 a phone repairer nw dat am aware of d cause and its solution.