Like many others here, I was an iPhone user from the first version until the iPhone 4. My first Android was a HTC One X which I LOVED... when it worked that is. After many trials and tribulations due to I guess the One X being crap (2 refurb replacements that both failed), AT&T ended up allowing me to do a VERY early upgrade and thus I end up with my Galaxy S4.
I love this phone. I consider myself a bit of a power-user (hence my dumping of the iPhone) and love all it's customization. I hope maybe it's that "flexibility" that is causing my issue(s) and it's easily fixed.
What's happening is that when I make or receive normal phone calls, often the person on the other end can't hear me. It doesn't seem to matter if I am using the built in mic or Bluetooth. Switching to speaker does seem to fix it most of the time but I have to say, it's maddening to have to sound like a Verizon commercial every time I call someone "Can you hear me now..."
This is an intermittent problem and so far as I can tell, the type of phone on the other end doesn't matter. It's happening with my mom's android phone and my wife's iPhone. I would say it happens on 75% of my calls though once the call is disconnected and reconnected, it almost always works at that point. It also doesn't seem to matter if I place to call or it's incoming.
Please help. As I said, I love this phone for all reasons that are not related to phone calls but this one issue is kinda ruining my experience.