Dialling error warning system and method

摘要

A dialling error notification system for visiting subscribers in a visited mobile telephony network (VPLMN), a visiting subscriber being a subscriber from a home mobile telephony network (HPLMN) different from the visited mobile telephony network. The system comprises: a first node of the visited mobile telephony network comprising apparatus for analyzing a number dialled by a subscriber and determining if said number dialled complies with at least one predetermined error criterion; and apparatus for sending a short message (SM) with a dialling error notification to the subscriber if said number dialled complies with at least one predetermined error criterion. The invention also refers to a dialling error notification method.