Patent ID: 6131026
Filing Date: 2000-10-10
Classification: H04B,H04W

Abstract:
A cellular communications system, comprising:a visited mobile switching center node believed to be currently serving a called mobile station and having a paging mechanism responsive to an incoming call implicating a certain calling service for paging for the mobile station and issuing an inter-exchange paging message; anda satellite mobile switching center actually currently serving the mobile station, the satellite mobile switching center not supporting the implicated certain calling service, and having a paging mechanism responsive to the inter-exchange paging message for paging for the mobile station, and for responding to a paging response by reserving a communications resource for the incoming call and notifying the visited mobile switching center regarding locating of the mobile station; andwherein the visited mobile switching center further operates responsive to the locating notification from the satellite mobile switching center to detect the failure of the satellite mobile switching center to support the implicated certain calling service and in response thereto disconnect the incoming call and issues a message instructing the satellite mobile switching center to release the reserved communications resource.