ZTE Warp - voice cuts out periodically during phone calls

Recently, I've been having problems with my voice cutting out (the person I'm speaking to is unable hear me for approx. 10-30 seconds). I can still hear them, but it's happening every single phone call after about 5 minutes, which is starting to get very annoying.



Anything I can do to remedy this?

via Forums de téléphone cellulaire (en français) http://cellphoneforums.net/fr/boost-mobile/t365487-zte-warp-coupures-de-voix-p%C3%A9riodiquement-pendant-les-appels-t%C3%A9l%C3%A9phoniques.html