Five9 Inc. FIVN is set to report first-quarter 2016 results on May 10, 2016. Last quarter, the company posted loss of 7 cents, which was narrower than the Zacks Consensus Estimate of loss of 12 cents. It is also worth noting that the company has outperformed the Zacks Consensus Estimate in all of the four trailing quarters with an average positive beat of 31.22%.Let’s see how things are shaping up for this announcement.Factors at PlayFive9 offers a virtual contact center cloud platform that acts as a hub for interaction between clients and customers. This facilitates contact center operations focused on inbound or outbound customer interactions within a single unified architecture. The company offers software products such as workforce management, speech recognition, predictive dialer, and voice applications.The cloud-based contact center solution industry is witnessing growth over the past several quarters as organizations are looking for ways to minimize costs and improve customer support. We believe that Five9 has been capitalizing on this opportunity, which should be reflected in the to-be-reported quarter.Furthermore, the company’s sustained focus on expanding its product portfolio will boost top-line performance.However, intensifying competition from small and large players, such as Cisco Systems CSCO, is likely to affect Five9’s first-quarter performance.Earnings WhispersOur proven model does not conclusively show that Five9 is likely to beat the Zacks Consensus Estimate in the upcoming release. This is because a stock needs to have both a positive Earnings ESP and a Zacks Rank #1 (Strong Buy), 2 (Buy) or 3 (Hold) for this to happen. Unfortunately, that is not the case here as elaborated below.Zacks ESP: The Earnings ESP for Five9 is 0.00%. This is because both the Most Accurate estimate and the Zacks Consensus Estimate stand at a loss of 11 cents.Zacks Rank: Though Five9’s Zacks Rank #3 increases the predictive power of ESP, the company’s 0.00% ESP makes surprise prediction difficult.We caution against stocks with Zacks Rank #4 or 5 (Sell-rated stocks) going into the earnings announcement, especially when the company is seeing a negative estimate revisions momentum.Stocks to ConsiderHere are a couple of companies worth considering, as our model shows that they have the right combination of two elements to post an earnings beat:Synopsys Inc. SNPS with Earnings ESP of +6.38% and a Zacks Rank #1.Nuance Communications, Inc. NUAN with Earnings ESP of +4.76% and a Zacks Rank #1.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report CISCO SYSTEMS (CSCO): Free Stock Analysis Report NUANCE COMM INC (NUAN): Free Stock Analysis Report SYNOPSYS INC (SNPS): Free Stock Analysis Report FIVE9 INC (FIVN): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research