Revenue during the quarter grew 22.80 percent to $8.04 million from $6.55 million in the previous year period. Gross margin for the quarter expanded 71 basis points over the previous year period to 74.85 percent. Operating margin for the quarter stood at negative 5.31 percent as compared to a positive 9.47 percent for the previous year period.

Operating loss for the quarter was $0.43 million, compared with an operating income of $0.62 million in the previous year period.

However, the adjusted operating income for the quarter stood at $0.19 million compared to $1.06 million in the prior year period. At the same time, adjusted operating margin contracted 1374 basis points in the quarter to 2.40 percent from 16.14 percent in the last year period.

"We were pleased with our strong first quarter execution highlighted by our relationship with AT&T and with other top tier carriers globally," commented Mr. Yaron Ravkaie, RADCOM's chief executive officer. "During the quarter, our hybrid approach of enabling a path to NFV and future proofing purchasing decisions continued to resonate with carriers. Given our visibility for the remainder of the year, we are reiterating our 2017 revenue guidance of $36-$39 million."