This is a crazy curiosity, not really a problem. Every Saturday morning I call my mother between 8 and 9 am on her landline. Sometimes, on my end, the phone just rings and rings. On her end, the caller ID shows a California number, and when she answers, she gets dead air. We both live in Texas, about 70 miles apart. I have a Boost Mobile Samsung Prevail, although I don't think the phone is the problem. Any ideas on what and why this happens only on Saturday?