DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/jc5d6v/global_telecom) has announced the addition of the "Global Telecom Billing Outsourcing Market 2015-2019" report to their offering. Many small and medium-sized telecom operators have started to outsource their billing functions to third-party vendors because of low levels of liquidity coupled with a lack of adequate working capital among these operators. The implementation of billing management softwa