Patent ID: 7539491

Claim:
A general global gateway (GGG) comprising: a database configured to store a number of times the mobile station has accessed the GGG, the GGG being configured to support communication between a GSM network and an unmodified CDMA network to enable a mobile station (MS) subscribed in the GSM network to communicate using the CDMA network; and a logic unit configured to execute program logic to determine whether a parameter is received from the MS, the parameter representing a count of a predetermined event that is a mutually agreed upon event between the GGG and MS, wherein, when the MS is a CDMA mobile station with a subscription in the GSM network, the GGG acts as an authentication controller in the unmodified CDMA network during registration of the MS but authenticates the MS using the GSM authentication mechanism; and wherein the MS is placed in a short message service (SMS) only status during authentication.