LG en v Cell phone

Question

Recently my phone rang past midnight.When I answered the phone no one spoke up. At the same time I saw my cell phone lite up.I checked the phone and discovered it had called my home phone.. My cell phone was on locked down mode.I contacted Verizon and they said they have never heard of it happening to anyone. Two weeks later my cell phone called my wife's phone 4 times within a few hours, and it was also on lock down mode.It it possible that my phone has been hacked?. I'm waitng for a new phone fromVerizon.James