A system and method of providing an intelligent automatic roaming analysis (ARA) that enables a roaming mobile subscriber to use abbreviated dialing regardless of the location of the subscriber in a radio telecommunications network. The radio telecommunications network includes a home network which comprises...http://www.google.com.hk/patents/US6490449?utm_source=gb-gplus-share專利 US6490449 - System and method of automatic roaming analysis (ARA) for dialing abbreviated numbers in a wireless intelligent network
