DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/pqzh77/sip_trunking) has announced the addition of the "SIP Trunking - Evolution in Enterprise Communications " report to their offering. SIP Trunking is an emerging technology that can pave the way for unified communications and get rid of expensive, less flexible traditional ISDN connections. This enables huge cost savings by converging voice and data services over a single network. Trends such as BYOD,