| 摘要 |
<p>An international roaming gateway system for providing caller information on a missed call signal, a location registration method and a roaming service method are provided to increase convenience for a foreign GSM service subscriber who has subscribed for a service of roaming to a CDMA network and increase revenue by inducing calls from the foreign GSM service subscriber. An international roaming gateway system for providing caller information on a missed call signal comprises a location registering unit(224), a calling number management unit(222) and a calling information providing unit(226). The location registering unit(224) sets a trigger function to a subscriber profile received from a roaming target network wherein the trigger function induces the calling information to be provided when a call connection is failed. The calling number management unit(222) checks whether a calling number is included in a roaming number checking request received from the roaming target network for a call connection setup on a terminal of the subscriber, collects the calling number by transmitting an arbitrarily allocated roaming number in case that the calling number is not included in the roaming number checking request and stores calling information composed of the collected calling number or the calling number included in the roaming number checking request. The calling information providing unit(226) checks a local language of the subscriber in case that a call connection to the terminal of the subscriber is failed, constructs the calling information written in the checked local language and transmits the constructed calling information to the terminal of the subscriber.</p> |
