A method of relating a dialed number to a new mobile station in a wireless network is provided. The dialed number is associated with a first mobile switching center, the new mobile station is associated with a second mobile switching center, and wireless service to the first and second mobile switching...http://www.google.de/patents/US7142862?utm_source=gb-gplus-sharePatent US7142862 - Intra-service number portability in wireless network
