iPhone 5s calls out hang

[wmurd118]

iPhone 5s. I can be several minutes into a conversation on my phone and the other party cannot hear me even though I can hear them. This lasts for 5-10 seconds and then the other party can hear me again. Happens whether I am using speakerphone or not. And I think most of the time the other parties are on iPhones as well. I subscribe to Sprint but most others are not. I am completely updated and have tried a hard reset. The problem persists regardless of ios version.

 

[pr1nce]

Try resetting network settings. Go to settings>general>reset>reset network settings. Good luck.