I have had my Rezound for about a month and have liked it; even traveled across the country with no connection problems. Then got home to the Texas hill country and it started acting up. We don't have very good signal here but even when in Kerrville where there is 3G this happens (but not San Angelo with 4G): my phone will be sitting there by its self and will start having a busy signal. I mess with the volume contol on the side that usually effects the ringer volume and it is now the in-call volume that does change the loudness of the busy signal. I can make a call out and it will temporarily stop the sound, but no one can call me while it is beeping. I went to the Verizon office, they did a factory reset, didn't fix it; they sent me a refurbished phone, trying to set it up today it did the same thing! Is there something going on with the tower that's causing this or the software? This is getting frustrating! Any help or input would really help.