Well, millions of AT&T customers should be, should be back to normal this morning after a massive service outage, as you can see from this down detector report. It happened in the middle of the afternoon yesterday, customers weren't able to get calls from other carriers. However, calls between AT&T customers didn't seem to be affected. The company tells NBC news that a glitch caused the outage but was fixed within a few hours. By the way, this is the second major AT&T outage in just the last four months.