PARSIPPANY, N.J.--(BUSINESS WIRE)--Wireless Telecom Group, Inc. (NYSE MKT:WTT) announced today results for the first quarter ended March 31, 2015. For the quarter ended March 31, 2015, the Company reported net sales of $8,628,000, compared to $9,185,000 for the same period in 2014, a decrease of 6%. Net sales in the Network Solutions segment were $5,895,000, compared to $6,390,000 for the same period in 2014, a decrease of 8%. Net sales in the Test and Measurement segment were $2,733,000, compa