Abstract: Echo plugs are plugged into the hands-free jacks of wireless telephones to facilitate testing. One echo plug has a pin and a circuit. The pin is physically compatible with the hands-free jack of a wireless telephone. The pin has a speaker connection and a microphone connection. The circuit couples the speaker connection to the microphone connection. In operation, this echo plug receives a signal from the speaker connection of the hands-free jack and transfers the signal to the microphone connection of the hands-free jack. Another echo plug has two pins and a circuit. The pins are physically compatible with the hands-free jack of a wireless telephone. The first pin has a speaker connection, and the second pin has a microphone connection. The circuit couples the speaker connection of the first pin to the microphone connection of the second pin.

Abstract: An echo plug is plugged into a hands-free jack of a wireless telephone for testing purposes. A test signal is transmitted from a test system to the wireless telephone over a test call. In the echo plug, the test signal is looped back from a speaker connection to a microphone connection of the hands-free jack. The test signal is transmitted from the wireless telephone to the test system over the test call. In other embodiments, an echo plug is used to loop a test signal from a speaker connection of a first wireless telephone to a microphone connection of a second wireless telephone.

Abstract: A system and method for resizing a window, containing a first display for displaying first data in a first format and a second display for displaying second data in a second format, to a height and a width, thereby creating a resized window. The system determines whether the first display can be drawn to a first scale thereby ensuring that the first display will fit within the resized window. If the first display will fit within the resized window, then the system draws the first display to the first scale. The system draws to a second scale the second display to a remaining area of the resized window after the first display is drawn. The second scale will consist of the entire window if the first display cannot be drawn to the first scale. The invention resizes the first display and the second display within the resized window to ensure a useful presentation of data.