Why is ICM Important?
ICM functionality enables messaging between networks in which otherwise would be constrained to only allow for intra-network messaging between subscribers belonging to the same network. This capability is of particular importance for countries and regions of the world such as the Americas and Asia-Pacific, which contain mobile operators that employ various technologies. ICM enables mobile operators in those areas to enjoy the same benefits of inter-network messaging enjoyed throughout Europe on the homogeneous GSM networks. How to Deploy ICM ICM may be deployed by the operator (within its on network) but the more effective solution is to utilize a third-party solution. This is due to economies of scale issues and the administrative impact of provisioning and administration of information, particularly in a country employing mobile number portability. The third-party or service bureau approach is exemplified by leading companies in this area such as the US based Illuminet (www.illuminet
