1. A method for use in Push-To-Talk (PTT) voice communications for a mobile station, the method comprising the steps of: identifying a user actuation of a PTT switch for initiating a PTT voice communication through a wireless communication network; in response to identifying the user actuation of the PTT switch: saving, in memory, digital voice data corresponding to voice input signals; causing a request for the PTT voice communication to be made through the wireless network; identifying that a floor grant has been received through the wireless network in response to the request; after identifying the floor grant, causing the digital voice data from the memory to be retrieved and transmitted to the wireless network for the PTT voice communication; wherein an input pointer is used to identify a next memory location for storing voice data and an output pointer is used to identify a next memory location for retrieving and transmitting voice data; identifying a user release of the PTT switch; storing an end marker for a memory location associated with the input pointer in response to identifying the user release of the PTT switch, the end marker being used to identify an end of the PTT voice communication; after identifying the user release of the PTT switch, continuing transmission of voice data from the memory as the output pointer approaches the end marker; and if a subsequent user actuation of the PTT switch is identified during the continued transmission of voice data from the memory: storing a pause marker in place of the end marker and causing a transmission of silent data when the output pointer reaches the pause marker.