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Ericsson-Telcordia. NEC-Convergys. IBM. Some of the biggest names in telecom, and in billing & OSS in particular, made some moves in Q1 that will reshape the industry moving forward.

This slide show breaks down key mergers and acquisitions from the first quarter of 2012. By no means is it a comprehensive list, but it includes both the giant newsmakers as well as some of those that may have slipped past you, which are important nonetheless.