EXFO says a top-tier North American network operator has selected EXFO's end-to-end voice, data and video monitoring solution to support its multiplay service offering. The same operator also selected an EXFO solution for its DNS response time measurement needs.The op chose EXFO's Brix Solution. Key components were the BrixCall and BrixNGN Solutions, which cover more than 50 points of presence (PoP) and integrate into the customer's operating support system (OSS).