Can't make or recieve calls
My good friend just called me on my cell phone. He tried to call my land line (ATT U-Verse), but said he got a message that the "Verizon customer was unavailble at this time..." So I tried to call myself and got a scratchy buzzing sound in my cell phone, and no ringing on the Uverse line. Then I tried to call my cell phone from my land line. There was a dial tone, but as soon as I dialed, there was just an open line - no ringing - no nothing. The Internet works though... What is wrong? Although I assume that the land line is okay, is it possible that somebody's trying to steal my phone number?