A method and apparatus for integrating a Voice over Internet Protocol (VoIP) client in a wireless PC card are disclosed. A soft mobile phone client is combined with a cellular PC card to create a single physical device that is capable of providing VoIP services to a computer user through the cellular capabilities of the device itself, or alternatively, through any other Internet connectivity available to the computer. When a user inserts the VoIP client/Cellular PC Card into a computer, a graphical user interface (GUI) within the connection manager software is launched allowing the user to communicate VoIP function commands to the VoIP client. A check for Internet connectivity may be performed, at which time the Radio portion of the enhanced PC card may be put into an idle state if connectivity is detected, or may alternatively establish Internet connectivity through the cellular portion of the enhanced PC card.