NEW YORK ( TheStreet) -- Microsoft ( MSFT) was up 0.24% to $28.94 in pre-market trading Friday after posting better than expected second quarter earnings.

The software giant generated an adjusted profit of 77 cents per share on sales of $19.95 billion, up from 74 cents EPS on sales of $19 billion in the year-ago quarter. Analysts were expecting EPS of 68 cents and revenue of $19.14 billion.

Amazon ( AMZN), meanwhile, dropped 7.3% as fourth-quarter sales estimates missed expectations.

The e-commerce giant earned $416 million, or 91 cents a share, on revenue of $12.95 billion. Analysts were looking for a profit of 88 cents on revenue of $13.01 billion.

AT&T ( T) was down 0.64% in pre-market trading to $27.95 after guiding below analyst estimates for 2011, despite meeting fourth quarter targets.

The carrier posted adjusted earnings of 55 cents a share, up 10 percent from the 50 cent mark in the year-ago quarter, and a penny better than expected.

Verizon ( VZ) fell 0.14% in pre-market trading, after announcing last night that it would acquire data center operator Terremark ( TMRK) for $1.4 billion. The acquisition is Verizon's largest since it purchased MCI in 2005 for $6.8 billion.

Facebook shot down rumors this week that it is rolling out a Facebook-branded phone after reports circulated that the HTC was readying one for launch at next month's Mobile World Congress trade show. The phone was rumored to offer automatic check-ins and coupons for Facebook Deals using GPS.

--Written by Olivia Oran in New York.

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