Hearing Random Dial Tones During Voice Calls

I got a brand new 16GB iPhone 5S mid-December, as did my better half, on our AT&T plan. We *BOTH* hear this random 'beep' during various phone calls, and once or twice, I even heard someone else talking that was not on either end of the phone call. It's almost as if someone is either listening in, or signals are getting seriously crossed over somewhere, but I NEVER had this problem with my older iPhones. Just the 5S. Any updates would be really nice if Apple would be willing to chime in here, considering the research I found has shown that users on Verizon, AT&T, and Sprint are all having the same problems.

So it would seem as if it is an iPhone issue, not a carrier issue. Just my opinion.

I'm having this same issue. I have an iPhone 5 (not a 5s), and I'm on Sprint, and the random DTMF tones (same tone when you press a number on the keypad) will occur during the call. I will hear them, but the other side will not.

This has been reported all over the internet and there doesn't seem to be a fix yet, and it's been going on for 2 years.

Same here. Random dial number tone during conversations. Some times more than others. Very troubling.

I am having this exact same issue! Iphone 5s, on Sprint, 64 gb. Please, if anyone knows the answer to fix this, please let us know!!

Yes I am experiencing the same thing with my 5s on Sprint...very annoying !!!

Yep, same here....Happening on my iPhone 5 16g (Sprint) as I type! Soooooo annoying! APPLE PLEASE FIX THIS!!!

I'm reviving this thread.

Same problem here. Using a 5s through Virgin Mobile, however it's Sprint's network. Fix this!!!