Is AT&T's Dividend in Danger After the Company Posted an Underwhelming Q4?

AT&T (T 0.91%) currently pays a dividend that yields 6.4%. That's more than four times the S&P 500 average of around 1.5%. While it does offer a mouthwatering payout for income investors, there's the obvious concern of whether it is sustainable. And those fears may have been heightened recently after the company posted earnings results that came in below analysts' expectations.Should investors be concerned about the safety of AT&T's dividend?What AT&T's Q4 numbers told income investorsOn Jan. 24, AT&T relea ...