DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/647gf8/north_american) has announced the addition of the "North American Primary Line Voice Tracker: Second Quarter 2015" report to their offering. During the second quarter of 2015, North America's residential primary line market continued to decline compared to second quarter of 2014. Operators are mostly losing access line subscribers to VoIP or to alternative services such as OTT and mobile wireless. T
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