Patent ID: 7873350
Filing Date: 2011-01-18
Classification: H04L,H04W

Abstract:
1. A method for establishing a secure communications link from a wireless communications station through a wireless communications network to a landline communications station in a landline network outside the wireless communications network, comprising: receiving at a proxy base station a request to establish a secure communications link between the wireless communications station and the landline communications station; establishing through the wireless communications network a secure communications session between the wireless communications station and the proxy base station; identifying, based on a measure of security, a most secure communications channel through the landline network between the proxy base station and the landline communications station, by accessing a database containing a plurality of communications channel identifiers and associated measures of security, the channel identifiers identifying channels through the landline network outside the wireless communications network; establishing a connection using the most secure channel between the proxy base station and the landline communication station; and comparing the request to establish a secure communications link between the wireless communications station and the landline communications station with previous requests involving the same wireless communications station and with data not accessible to an operator of the wireless communication network, to detect malicious behavior; whereby the secure communications link is established from the wireless communications station to the landline communications station through the secure communications session between the wireless communications station and the proxy base station and through the connection using the most secure channel between the proxy base station and the landline communication station; wherein the data not accessible to the operator of the wireless communication network comprises employees' travel schedules.