ORANGE, Conn.--(BUSINESS WIRE)--Tangoe, Inc. (NASDAQ: TNGO), a leading global provider of Connection Lifecycle Management (CLM) software and related services, today announced the next event in its series of seminars on Sourcing Enterprise Communications and Cloud Contracts, to be held in Minneapolis, Minnesota on Thursday, May 28, 2015. This forum focuses on carrier contract buying and lifting the veil of secrecy off carrier practices, while delivering the strategic information and tactical kno