Sonus Networks (Nasdaq: SONS) is expected to report Q4 earnings on Feb. 28. 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 increase 6.6% and EPS will wither -100.0%.

The average estimate for revenue is $79.2 million. On the bottom line, the average EPS estimate is $0.00.

Revenue details
 Last quarter, Sonus Networks reported revenue of $57.0 million. GAAP reported sales were 14% lower than the prior-year quarter's $66.4 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 -$0.02. GAAP EPS were -$0.06 for Q3 against $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 56.9%, 670 basis points worse than the prior-year quarter. Operating margin was -15.3%, much worse than the prior-year quarter. Net margin was -27.4%, much worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $258.2 million. The average EPS estimate is -$0.07.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 361 members out of 388 rating the stock outperform, and 27 members rating it underperform. Among 64 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 57 give Sonus Networks a green thumbs-up, and seven 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 $2.98.

Internet software and services are being consumed in radically different ways, on increasingly mobile devices. Does Sonus Networks fit in anymore? Check out the company that Motley Fool analysts expect to lead the pack in "The Next Trillion-dollar Revolution." Click here for instant access to this free report.