User Activity

Hi.  I'm trying to make calls and a message, "mobile network not available" pops up on my screen.A)  Is this because of the ice storm?B)  When will the mobile network work again?
I hear a random beep sound during voice calls.  This happens only with one person I talk with.  It's not notifications or incoming calls on my phone and so on.  I make many voice calls to different people every week.  These beeps only happen with one...