Apparatus, method and computer program for communicating via a plurality of networks

An apparatus configured to communicate via a plurality of networks subject to access controls, the apparatus comprising:

• circuitry configured to
• receive access control settings from a first network, wherein said first network is the apparatus' serving network, and the access control settings comprise at least one of a setting indicating whether origination of a connection is barred in the first network, a setting indicating whether performing a registration is barred in the first network, or a setting indicating whether responding to a request to establish a connection is barred in the first network;
• store the received access control settings;
• establish a first connection via the serving network based on one or more of the access control settings;
• determine that the apparatus' serving network has changed from the first network to a second network;
• and
• replace at least a portion of the plurality of access control settings with corresponding default access control settings not received from the second network, wherein the default access control settings comprise at least one of a setting indicating whether origination of a connection is barred in the second network, a setting indicating whether performing a registration is barred in the second network, or a setting indicating whether responding to a request to establish a connection is barred in the second network.

A memory storing a set of computer readable instructions which, when executed by an apparatus configured to communicate via a plurality of networks subject to access controls, causes the apparatus to:

• receive access control settings from a first network, wherein said first network is the apparatus' serving network, and the access control settings comprise at least one of a setting indicating whether origination of a connection is barred in the first network, a setting indicating whether performing a registration is barred in the first network, or a setting indicating whether responding to a request to establish a connection is barred in the first network;
• store the received access control settings;
• establish a first connection via the serving network based on one or more of the access control settings;
• determine that the apparatus' serving network has changed from the first network to a second network;
• and
• replace at least a portion of the plurality of access control settings with corresponding default access control settings not received from the second network, wherein the default access control settings comprise at least one of a setting indicating whether origination of a connection is barred in the second network, a setting indicating whether performing a registration is barred in the second network, or a setting indicating whether responding to a request to establish a connection is barred in the second network.