Iphone 4s iOs 6 Sound issue-

Hi. I've seen several topics regarding this issue yesterday, but since then apple has done maintenance and those posts are nowhere to be seen 😐

I downloaded iOs 6 the day it came out, and had no real issues with my device, but a couple of days after sound problems started. The only sound that comes out my device is 'ringtone' when someone calls me. Occassionally the lock screen sound/keyboard sounds will come back on for a couple of seconds but not much longer. I though maybe I dropped my device or got it wet, but that is not the case.

The 3.5mm jack I use for audio in my car, still provides working sound from my iphone, but the speaker on the phone itself does not. My radio/dock for the phone also plays the music/sounds from the device, and will continue playing them even after removing the phone, but only for a couple of seconds.

So all-in-all I don't think its a hardware issue. My question is, anyone here having a related bug? Any known fixes?