Just got a call from my mom, who told me that she just got a call on her landline. She said that my name and number showed up on her caller ID, but that a man was mumbling something and what he was saying was incoherent. Then he said he got the wrong number and hung up. My phone has been in my possession the entire time, and no one used it to make a call to my mom's number. Should I be worried? How can I check my outgoing phone call list?