Patent ID: 9265072
Filing Date: 2016-02-16
CPC Classification: H04L,H04W

Claim Text:
1. A method of facilitating processing of mobile-terminated voice calls for a mobile station attached with a femtocell system, comprising: receiving, by a convergence server deployed in at least one of an IP core network or an IMS core network, a call request for a mobile station attached with a femtocell system; performing, by the convergence server, validation of the mobile station against a subscriber profile maintained by the convergence server; transmitting, by the convergence server, an invite message to the femtocell system; receiving, from the femtocell system by the convergence server, a paging authentication request created by the femtocell system, the paging authentication request comprising authentication data received from the mobile station by the femtocell system; engaging, by the convergence server, a mobile core network in an authentication process for the mobile station; transmitting, by the convergence server, a global challenge response to the femtocell system, wherein the global challenge response includes an authentication token that is generated by the convergence server; and determining, by the convergence server, whether the authentication token is present in all subsequent invite response messages received from the femtocell system for the mobile terminated voice call to the mobile station and denying by the convergence server the establishment of session initiation protocol (SIP) calls if the authentication token is not received.