Patent ID: 8515418
Filing Date: 2013-08-20
Classification: H04W

Abstract:
1. A Client for inclusion in a mobile telephony apparatus barred from international roaming usage, to remove said barring to allow roaming operation thereof according to conditions determined at a home network, the client being configured with an activation unit and a call control unit, said activation unit configured to switch said client between active and passive states, and said call control unit, operative in said active state, to communicate through said client within said mobile telephony apparatus with a predetermined barring removal node at said home network, to remove said barring at said roaming network according to determined conditions of said home network, and to facilitate control of said mobile telephony apparatus using said home network, the communication causing said barring to be removed for a duration of a setup of a call, and further causing said barring to be set again after the call is established.