1. A method for transmitting graphical images information between a wireless device and a server in a push-to-talk system on a wireless telecommunication network, comprising the steps of: displaying a predefined set of graphical images at a wireless device, wherein the a graphical image is selected for transmitting to the server, the predefined set resident on the wireless device and each graphical image in the predefined set being identified by an image code; receiving an indication of a selected graphical image at the wireless device, wherein the indication of the selected graphical image will be transmitted from the wireless device to the server via the push-to-talk system; selecting at the wireless device an image code corresponding to the indication of the selected graphical image; and transmitting the image code from the wireless device to the server via a push-to-talk communication channel.