A low voice while on call using iPhone 5s
Hi, Recently I have switched from iPhone 4s to iPhone 5s. I have iOS 7.0.2 version installed. Everything works great except I am facing some voice related issues. When I get a call if I use speaker phone, I can hear the voice clearly. But otherwise with ear-speaker the voice is very low and I hardly able to hear. I have tried to see if there is something got stuck in the speaker but everything looks fine. Does anybody face the same issue? What could be the problem? Any help in this regard is very much appreciated. Thanks.