Mobile Telesystems OJSC (NYSE: MBT) reported earnings on May 21. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), Mobile Telesystems OJSC beat slightly on revenues and crushed expectations on earnings per share.

Compared to the prior-year quarter, revenue improved slightly and GAAP earnings per share grew significantly.

Margins grew across the board.

Revenue details
 Mobile Telesystems OJSC chalked up revenue of $3.01 billion. The six analysts polled by S&P Capital IQ expected a top line of $2.98 billion on the same basis. GAAP reported sales were 2.7% higher than the prior-year quarter's $2.93 billion.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
 EPS came in at $0.52. The two earnings estimates compiled by S&P Capital IQ averaged $0.30 per share. GAAP EPS of $0.51 for Q1 were 50% higher than the prior-year quarter's $0.34 per share.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Margin details
 For the quarter, gross margin was 71.7%, 80 basis points better than the prior-year quarter. Operating margin was 21.6%, 210 basis points better than the prior-year quarter. Net margin was 17.0%, 600 basis points better than the prior-year quarter.

Looking ahead
 On the bottom line, the average EPS estimate is $0.38.

Next year's average estimate for revenue is $12.95 billion. The average EPS estimate is $1.59.

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