Telecommunications stock AT&T Inc (NYSE:T) is enjoying a lift today, last seen up 4.3% at $23.99, after better-than-expected fourth-quarter earnings of 52 cents per share on revenue of$33.47 billion. The company also shared strong guidance and unveiled a new 10 billion share buyback. The strong results are giving AT&T stock a much-needed lift after last session's 52-week low of 22.95. Should these gains hold, it will be T's largest single-day percentage gain since reporting earnings for the same quarter ...