Method that enables the user of a wireless telephone terminal to establish an emergency connection in a local network, and terminal and server for carrying out this method

A radio access point of a local network for use in enabling a calling wireless terminal to establish an emergency connection in a local network, wherein the calling wireless terminal is not subscribed to the local network, comprising a processor configured for, when an emergency telephone number is indicated to be a called destination:

• receiving, at the radio access point, a start-up message originated by the calling wireless terminal;
• sending a message which requests the identity of the terminal from the radio access point toward the terminal in response to the start-up message;
• receiving at the radio access point a message which includes the identity of the calling wireless terminal and an indication signifying that the message including the identity of the calling wireless terminal is for an emergency call;
• transmitting, from the radio access point toward an authentication server, a message including the identity of the calling wireless terminal and an indication signifying that the message including the identity of the calling wireless terminal relates to an emergency call;
• receiving at the radio access point an acceptance message that was originated by the authentication server;
• recognizing the acceptance message at the radio access point and in response validating a port of the radio access point to be available for use by the calling wireless terminal to establish an emergency connection over the local network;
• and
• transmitting indication of the acceptance message to the wireless terminal.

A system that permits a calling wireless terminal to establish an emergency connection in a local network comprising an authentication server, wherein the calling wireless terminal is not subscribed to the local network, the system comprising:

• a wireless terminal that recognizes a user-entered number as an emergency number;
• an access point configured to:
• receive a startup message originated by the terminal;
• send a first message, which requests the identity of the terminal, from the access point toward the terminal in response to the start-up message;
• receive a second message, which comprises terminal identity information and an indication signifying that the startup message is for an emergency call, the second message having been originated by the wireless terminal;
• transmit toward the authentication server the second message containing the identity information and an indication signifying indication signifying that the startup message is for an emergency call;
• receive an acceptance message originated by the authentication server;
• recognize, at the access point, the acceptance message;
• in response to recognizing the acceptance message, validate a port of the access point to be available for use by the terminal to establish an emergency connection over the local network;
• and
• transmit the acceptance message toward the wireless terminal;
• wherein the authentication server recognizes that the second message comprises an indication signifying that it is an emergency call.

A system that permits a calling wireless terminal to establish an emergency connection in a local network comprising an authentication server, wherein the calling wireless terminal is not subscribed to the local network, the system comprising:

• an access point configured to:
• receive a startup message originated by the terminal at a radio access point;
• send a first message, which requests the identity of the terminal, from the access point toward the terminal in response to the start-up message;
• receive a second message, which comprises terminal identity information and an indication signifying that the startup message is for an emergency call, the second message having been originated by the terminal;
• transmit the second message containing the identity information and an indication signifying indication signifying that the startup message is for an emergency call from the access point toward the authentication server;
• receive at the access point an acceptance message originated by the authentication server;
• recognize, at the access point, the acceptance message;
• in response to recognizing the acceptance message, validate a port of the access point to be available for use by the terminal to establish an emergency connection over the local network;
• and
• transmit the acceptance message toward the terminal;
• wherein the authentication server recognizes that the second message comprises an indication signifying that it is an emergency call.

A radio access point of a local network for use in enabling a calling wireless terminal to establish an emergency connection in a local network when the calling wireless terminal is not subscribed to the local network and when an emergency telephone number is indicated to be a called destination, the radio access point comprising:

• means for receiving a start-up message originated by the calling wireless terminal;
• means, responsive to the start-up message, for sending toward the terminal a message which requests the identity of the terminal;
• means for receiving a message which includes the identity of the calling wireless terminal and an indication signifying that the message including the identity of the calling wireless terminal is for an emergency call;
• means for transmitting toward an authentication server a message including the identity of the calling wireless terminal and an indication signifying that the message including the identity of the calling wireless terminal relates to an emergency call;
• means for receiving an acceptance message that was originated by the authentication server;
• means for recognizing the acceptance message at the radio access point and in response validating a port of the radio access point to be available for use by the calling wireless terminal to establish an emergency connection over the local network;
• and
• means for transmitting an indication of the acceptance message to the wireless terminal.