Method for indicating an emergency call availability to a mobile equipment (ME), method for establishing an emergency call

A method for establishing an emergency call for a Mobile Equipment (ME) on a first mobile telecommunications network or on a second mobile telecommunications network, the method comprising:

• storing, at a memory device attached to the ME, availability data regarding the possibility of unauthenticated emergency calls;
• wherein the first and second mobile telecommunications networks provide a first network service and a second network service to the ME, each of the first and the second network services comprising at least one of the group consisting of:
• a Circuit Switched (CS) service, a Packet Switched (PS) service, and an Internet Protocol Multimedia Subsystem (IMS) service;
• wherein the availability data indicates, for each of the first network service and the second network service, an emergency calling status from a plurality of emergency calling statuses, the plurality of emergency calling statues including:
• all unauthenticated emergency calls being allowed with or without an identification module inserted in the ME,
• unauthenticated emergency calls only being allowed if a valid identification module is inserted in the ME, and
• unauthenticated emergency calls not being allowed;
• and
• establishing, by the ME, when the ME is in a limited service state, the emergency call on the first mobile telecommunications network or the second mobile telecommunications network based on the availability data.

A Mobile Equipment (ME), comprising:

• a memory device attached to the ME, configured to store availability data regarding the possibility of unauthenticated emergency calls;
• wherein first and second mobile telecommunications networks provide a first network service and a second network service to the ME, each of the first and the second network services comprising at least one of the group consisting of:
• a Circuit Switched (CS) service, a Packet Switched (PS) service, and an Internet Protocol Multimedia Subsystem (IMS) service;
• wherein the availability data indicates, for each of the first network service and the second network service, an emergency calling status from a plurality of emergency calling statuses, the plurality of emergency calling statues including:
• all unauthenticated emergency calls being allowed with or without an identification module inserted in the ME,
• unauthenticated emergency calls only being allowed if a valid identification module is inserted in the ME, and
• unauthenticated emergency calls not being allowed;
• and
• a processor, configured to indicate, when the ME is in a limited service state, emergency call availability based on the availability data.

A Mobile Equipment (ME), comprising:

• a memory device attached to the ME, configured to store availability data regarding the possibility of unauthenticated emergency calls;
• wherein first and second mobile telecommunications networks provide a first network service and a second network service to the ME, each of the first and the second network services comprising at least one of the group consisting of:
• a Circuit Switched (CS) service, a Packet Switched (PS) service, and an Internet Protocol Multimedia Subsystem (IMS) service;
• wherein the availability data indicates, for each of the first network service and the second network service, an emergency calling status from a plurality of emergency calling statuses, the plurality of emergency calling statues including:
• all unauthenticated emergency calls being allowed with or without an identification module inserted in the ME,
• unauthenticated emergency calls only being allowed if a valid identification module is inserted in the ME, and
• unauthenticated emergency calls not being allowed;
• and
• a processor, configured to establish, when the ME is in a limited service state, the emergency call in one of the first mobile telecommunications network and the second mobile telecommunications network based on the availability data.

A tangible, non-transitory computer-readable medium having compute-executable instructions stored thereon for indicating an emergency call availability to a Mobile Equipment (ME) on a first mobile telecommunications network and on a second mobile telecommunications network, the computer-executable instructions, when executed by a processor, causing the following steps to be performed:

• storing, at a memory device attached to the ME, availability data regarding the possibility of unauthenticated emergency calls;
• and
• indicating, when the ME is in a limited service state, emergency call availability based on the availability data;
• wherein the first and second mobile telecommunications networks provide a first network service and a second network service to the ME, each of the first and the second network services comprising at least one of the group consisting of:
• a Circuit Switched (CS) service, a Packet Switched (PS) service, and an Internet Protocol Multimedia Subsystem (IMS) service:
• wherein the availability data indicates, for each of the first network service and the second network service, an emergency calling status from a plurality of emergency calling statuses, the plurality of emergency calling statues including:
• all unauthenticated emergency calls being allowed with or without an identification module inserted in the ME,
• unauthenticated emergency calls only being allowed if a valid identification module is inserted in the ME, and
• unauthenticated emergency calls not being allowed.

A tangible, non-transitory computer-readable medium having computer-executable instructions stored thereon for establishing an emergency call for a Mobile Equipment (ME) on a first mobile telecommunications network or on a second mobile telecommunications network, the computer-executable instructions, when executed by a processor, causing the following steps to be performed:

• storing, at a memory device attached to the ME, availability data regarding the possibility of unauthenticated emergency calls;
• wherein the first and second mobile telecommunications networks provide a first network service and a second network service to the ME, each of the first and the second network services comprising at least one of the group consisting of:
• a Circuit Switched (CS) service, a Packet Switched (PS) service, and an Internet Protocol Multimedia Subsystem (IMS) service;
• wherein the availability data indicates, for each of the first network service and the second network service, an emergency calling status from a plurality of emergency calling statuses, the plurality of emergency calling statues including:
• all unauthenticated emergency calls being allowed with or without an identification module inserted in the ME,
• unauthenticated emergency calls only being allowed if a valid identification module is inserted in the ME, and
• unauthenticated emergency calls not being allowed;
• and
• establishing, when the ME is in a limited service state, the emergency call on the first mobile telecommunications network or the second mobile telecommunications network based on the availability data.