Wireless emergency call (ECALL) devices and ECALL service subscription management

A method for use in a digital wireless telecommunications network comprising:

• providing a home location register (HLR) database for maintaining subscriber profile information and respective subscription information for each subscriber;
• for a given subscriber, indicating in the corresponding HLR record a subscription to a restricted access and mobility management (RAMM) subscription service, wherein the RAMM subscription service is associated with a network access device (NAD) of a motor vehicle;
• and
• for the subscriber having a current subscription to the RAMM subscription service, maintaining at least the corresponding subscriber profile information held in the home location register HLR until the occurrence of a predetermined trigger event;
• wherein the stored RAMM subscription information includes RAMM service settings, and further comprising synchronizing the stored RAMM service settings between an RAMM mobile station (MS) and the home location register (HLR) using over the air (OTA) device management procedures.

A method for use in a digital wireless telecommunications network comprising:

• providing a home location register (HLR) database for maintaining subscriber profile information and respective subscription information for each subscriber;
• for a given subscriber, indicating in the corresponding HLR record a subscription to a restricted access and mobility management (RAMM) subscription service, wherein the RAMM subscription service is associated with a network access device (NAD) of a motor vehicle;
• and
• for the subscriber having a current subscription to the RAMM subscription service, maintaining at least the corresponding subscriber profile information held in the home location register HLR until the occurrence of a predetermined trigger event;
• wherein the vehicle is equipped with an eCall system comprising an embedded mobile station (MS) operatively coupled to a crash detection system in the vehicle;
• and
• wherein the vehicle eCall system includes a port for connection to a user's mobile station to utilize the user's mobile station to provide eCall communications.

A method for use in a digital wireless telecommunications network comprising:

• providing a home location register (HLR) database for maintaining subscriber profile information and respective subscription information for each subscriber;
• for a given subscriber, indicating in the corresponding HLR record a subscription to a restricted access and mobility management (RAMM) subscription service, wherein the RAMM subscription service is associated with a network access device (MS) of a machine;
• and
• for the subscriber having a current subscription to the RAMM subscription service, maintaining at least the corresponding subscriber profile information held in the home location register HLR until the occurrence of a predetermined trigger event;
• wherein the information stored in the HLR includes identification of the machine and
• identification of an ICE contact to direct communication in the event that a call is initiated by an NAD coupled to the machine.