AT&T Wireline, Wireless Shows Strength; Churn Woes Linger By: TalkMarkets December 16, 2014 at 21:15 PM EST Nevertheless, the company expects full-year 2014 wireless service margins to remain flat or show an improvement in comparison to 2013. Read More >> Related Stocks: AT&T Inc DIRECTV Sk Telecom Corp ADR Vonage Holdings