Patent ID: 8422423
Filing Date: 2013-04-16
Classification: H04L,H04M,H04W

Abstract:
1. A packet communication method for performing packet communications via a data path established between a mobile station and a packet exchange, the method comprising the steps of: receiving, at the mobile station, restriction information when an external device determines that the mobile station requires restriction on at least making an outgoing call; receiving, at the mobile station, an incoming paging signal from the packet exchange; establishing, at the mobile station, a control path with the packet exchange in response to the incoming paging signal for the mobile station; sending, from the packet exchange, a message to the mobile station via the control path, the message instructing the mobile station to establish the data path with the packet exchange; establishing, at the mobile station, the data path with the packet exchange by calling to the packet exchange, when the mobile station receives the message after the mobile station has received the restriction information and the paging signal and when the restriction information indicates that the mobile station can accept an incoming call but not make an outgoing call; establishing, at the mobile station, the data path with the packet exchange by calling to the packet exchange, when the mobile station receives the message and when the mobile station has not received any restriction information; and restricting, at the mobile station, establishment of the data path with the packet exchange, when the mobile station receives restriction information indicating that the mobile station is restricted from accepting an incoming call and making an outgoing call.