A method and system for inter-operator handover in a telecommunications network comprising a greenfield WCDMA operator and a GSM/WCDMA operator. When a mobile terminal of the greenfield operator is moving from the coverage area of the home network to the GSM/WCDMA area, a neighbor list of GSM cells is...http://www.google.com/patents/US6836471?utm_source=gb-gplus-sharePatent US6836471 - Method and system for inter-operator handover between WCDMA and GSM