Sonus Networks (Nasdaq: SONS) is expected to report Q1 earnings on April 30. Here's what Wall Street wants to see:

The 10-second takeaway
 Comparing the upcoming quarter to the prior-year quarter, average analyst estimates predict Sonus Networks's revenues will compress -4.9% and EPS will remain in the red.

The average estimate for revenue is $61.2 million. On the bottom line, the average EPS estimate is -$0.03.

Revenue details
 Last quarter, Sonus Networks reported revenue of $75.1 million. GAAP reported sales were 1.2% higher than the prior-year quarter's $74.3 million.

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

EPS details
 Last quarter, non-GAAP EPS came in at $0.01. GAAP EPS were -$0.06 for Q4 versus $0.01 per share for the prior-year quarter.

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

Recent performance
 For the preceding quarter, gross margin was 47.4%, much worse than the prior-year quarter. Operating margin was -12.8%, much worse than the prior-year quarter. Net margin was -21.8%, much worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $268.8 million. The average EPS estimate is $0.01.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 362 members out of 388 rating the stock outperform, and 26 members rating it underperform. Among 58 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 52 give Sonus Networks a green thumbs-up, and six give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Sonus Networks is outperform, with an average price target of $3.01.

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