Methods and apparatus for facilitating access to public wireless access points in a fixed-mobile convergence system. A mobile terminal is pre-provisioned with one or more security parameters corresponding to one or more WLAN access points that the mobile terminal might need to access should a current WLAN access point fail or otherwise become unreachable. The WLAN access points are similarly pre-provisioned with a security parameter corresponding to the mobile terminal. With these pro-provisioned security parameters, the mobile terminal and any one of the potential target WLAN access points conduct an abbreviated authentication process in the event that a switch-over becomes necessary.