A strange thing happened to my iPhone about a month ago. As I’d use my iPhone for anything other than calls — to play Bookworm, listen to Hebrew lessons, etc, the sound would cut out. This became more and more frequent until one day I had no sound for any of my apps. I also lost the alert sounds that would tell me I had a text message or email. I couldn’t even know someone was phoning me or had texted me using any text app.
Thankfully, although games, language apps, the Music app were all mute, I still had perfect sound for phone calls and even more oddly, I had sound for calls via the Vonage app. However, I had to keep the phone close to my body or in my sight to know I was receiving a call or text.