METHOD AND APPARATUS FOR INTERCONNECTING TELECOMMUNICATION NETWORKS

摘要

A system for facilitating a Iow-cost call between a mobile telecommunication device communicating via a mobile communication network and a receiver telecommunication device communicating via a receiver communication network. The system selects a least costly communication link. The system comprises: a router communicating with the mobile telecommunication device via the mobile communication network, and comprising: communication links to at least one of several communication networks of various types; database comprising information about the cost of communication links via said at least one of several types of communication networks to the receiver telecommunication device; processing unit for selecting the least costly communication link, based on the information in the database, and routing the call to the selected communication network for connecting with the receiver telecommunication device.