These projections or statements are neither promises nor guarantees and instead are predictions based on management's current beliefs and involve various risks and uncertainties, such that actual events or financial results may differ materially from those we have forecasted. As a result, we can make no assurances that any projections or future events or financial performance will be achieved.For a discussion of important risks or uncertainties that could cause actual events or financial results to vary from these forward-looking statements, please refer to our recent filings with the SEC, including the risk factors described in our Form 10-K for the year ended December 31, 2010, and Form 10-Q for the quarter ended March 31, 2011. Any forward-looking statements represent our views only as of today and should not be relied upon as representing our views as of any subsequent date. While we may elect to update or revise forward-looking statements at some point, we specifically disclaim any obligation to do so, unless required by law. And finally, please note that during our call, we will be referring to certain GAAP and non-GAAP financial measures. Our reconciliation of the non-GAAP to comparable GAAP financial measures is available in the Investor Relations section of our website found at www.sonusnet.com. A recording of this call and the instructions for accessing it are available on the Sonus Networks Investor Relations website as well. Before I turn the call over to Ray, let me briefly bring to your attention several of our upcoming investor events. On May 12, we will be at the Jefferies Global Technology Conference in New York, and on May 25, we will be at the Barclays Capital GMT Conference, also being held in New York. For more details on our IR outreach plan for the first half of 2011, please feel free to contact me.
I would now like to turn the call over to our CEO, Ray Dolan. Please go ahead, Ray.Raymond Dolan Thank you, Fran. Good afternoon, everyone, and welcome to our Q1 2011 earnings call. Let me briefly touch upon our numbers, and then I'll let Wayne go into much more detail. Revenue for Q1 was $67.3 million, down from $83 million in Q4 of last year and up from $62.4 million in Q1 of last year. Our NBS revenue for the quarter was $2.3 million, down from $8.7 million in Q4 and down from $3.1 million in of Q1 of last year. Regarding our NBS-5200 product, during Q1 we booked orders from 8 customers, and we now have a total of 25 trials underway. This quarter, we recognized substantial revenue from a deal with Bahamas Telecom that was booked in 2008. As Wayne will discuss in a few minutes, this contract included a large percentage of third-party equipment, which drove gross margins for this quarter below our normal levels. This strategic relationships positions us to provide further future products and support to the customer, as their needs continue to expand and develop. The effect of this contract is isolated to the current quarter. To be clear, our gross margin outlook, as well as our revenue and OpEx outlook continue to be in line with the previous guidance we provided on our last call. Before I hand off to Wayne, I would like to share a few observations since my arrival. In just over 6 months, I've had the opportunity to meet with our customers across the globe that represent nearly 80% of our historical revenue base. These discussions reaffirmed the depth of relationships we have with our customers and the trust they've built with us over the years. As we look to expand into new markets and new geographies, it will be these trusted relationships and our expertise in IP networking that will leverage to drive product and service innovation around our customer needs.
During the past 6 months, we've been busy building a world-class organization to drive our success going forward. As I stated on our October call, it really starts with the team and getting the right people and the right seats on the bus. On our last call, I introduced Rajiv Laroia as our CTO. Rajiv brings a great deal of experience to Sonus in the areas of data transmission and wireless communications, as well as speech, image and video compression.Read the rest of this transcript for free on seekingalpha.com