Patent ID: 8200185

Claim:
A method of performing emergency call (eCall) establishment, comprising: generating a message and providing an eCall indicator, the eCall indicator indicating whether the eCall is initiated automatically by the terminal or manually by a user, the message comprising one of the following: a Connection Management (CM) Service Request message, an Emergency SETUP message, or a SETUP message, wherein the Connection Management (CM) Service Request message comprises one of the following: a Connection Management (CM) Service Type information element having at least one value used for the eCall indicator; or a Mobile Station (MS) Classmark 2 information element having at least one bit used for the eCall indicator; the Emergency SETUP message comprises a parameter that is not a Service Category parameter and that contains the eCall indicator; and the SETUP message comprises a called party binary-coded decimal (BCD) number information element that has at least one called party number reserved for the eCall indicator; and sending the message to originate an eCall for a terminal.