Abstract: A system equipped with methods and an International Temporary Local Directory Number (TLDN) Translator. In accordance with one aspect of the invention, a device in a home domain uses the International TLDN Translator to receive operative routing information to a mobile phone roaming in a serve domain. The calling device contacts the local Public Switching Telephone Network (PSTN) with a request to contact the roaming mobile phone in the serve domain. Mobile Switching Center (MSC) sends a routing request to the International TLDN Translator, which forwards the request to the serve domain. The serve domain responds with a TLDN of the roaming mobile phone located in the serve domain. The International TLDN Translator modifies the TLDN to create a pseudo-TLDN that is operative from the home domain, such that a device in the home domain can contact the roaming mobile phone. The modification of the TLDN is performed by determining the dialing characteristics between the home domain and the serve domain.

Abstract: A system and method to transfer messages between signaling systems in different domains for wireless communication. In one aspect of the invention, a method for communicating between a switch servicing a roaming mobile phone in a domain different than a home switch to which the mobile phone is defined. A signaling gateway is used as an interface between the two domains. The method includes storing in the signaling gateway a mobile identification number (MIN) and the home switch point code that the mobile phone is defined to. When the mobile phone roams into another domain, the switch servicing the roaming mobile phone, the serve switch, identifies the mobile phone as belonging to another domain and sends a message to the signaling gateway. The signaling gateway stores this information and informs the home switch that all messages designated for the serve switch need to be sent to the signaling gateway.