International call and data routing

摘要

Telecommunication services (i.e. international roaming support) are provided to users. User information for a first identity of a user in a first telecommunication network is maintained. An active presence for a mobile device for the user is maintained by means of a second identity in a second telecommunication network. A presence of the user in the first network is emulated using a gateway system (Network Convergence gateway) that couples the first telecommunication network to the second telecommunication network. Association between the first identity (e.g. the Mobile Identity number, MIN, or mobile phone number of the mobile device at the first-home-network) and the second identity (e.g. a Mobile Directory Number, MDN, assigned at the second-foreign or local-network) is maintained.