1. A method for executing an emergency call, the method comprising:receiving an emergency call request;
initiating, according to the emergency call request, emergency calls according to the emergency call request simultaneously, wherein the emergency calls includes a first emergency call and a second emergency call, the first and emergency call being initiated on a first communications network and the second emergency call being initiated on a second communications network, the first communications network being separate and distinct from the second communications network;
establishing a network connection for at least one of the emergency calls; and
releasing the other emergency calls for which no network connection has been established; and, wherein initiating n emergency calls simultaneously comprises:
initiating each emergency call using a respective underlying protocol stack; and
establishing the connection for one of the emergency calls comprises:
when answering responses of at least two of the n emergency calls are received, determining a corresponding underlying protocol stack according to preset priorities, and establishing the connection using the determined underlying protocol stack.