Patent ID: 6819753
Filing Date: 2004-11-16
Classification: H04W

Abstract:
A call-back system, comprising:a first wireless terminal, and a second wireless terminal; a first exchange in wireless contact with the first and second terminals; a wire-bounded terminal connected to the first exchange through a wired communication network; a second exchange in communication with the first exchange, the second exchange including a call-authorization function, using a call-back call to the first terminal, to authorize calls from the first wireless terminal to another terminal via the first exchange while bypassing the second exchange; a buffer located within the first terminal, the buffer configured for storing the number of called terminals; and an electronic circuit within the first terminal, the electronic circuit for accepting a call-back call-authorization call originated at the second exchange, wherein, the first terminal has no subscriber relation with the first exchange and has a subscriber relation with the second exchange, with the first terminal being situated within an influence area of the first exchange, the first terminal transmits a number to make a connection with another terminal, the number is received by the first exchange and transmitted by the first exchange to the second exchange, the first terminal also storing the number in the buffer, upon receiving the number, the second exchange recognizes the first terminal and decides to authorize the connection of the first terminal to the another terminal to establish a call via the first exchange while bypassing the second exchange and makes the call-back call to the first terminal, the electronic circuit of the first terminal accepting the call-back call with the call-authorization from the second exchange and makes the connection to the another terminal via the first exchange, the first terminal making the connection using the number of the another terminal stored in the buffer.