A wireless telephone includes a cellular telephone controller configured to interface the cellular telephone to a telephone network; a wireless packet network controller configured to interface the wireless telephone to one or more packet networks for voice over IP voice connection; and a wireless network access point controller configured to function as a wireless access point for interfacing a computer to said packet network via the telephone network; wherein the wireless packet network controller is configured to turn off a function of the wireless network access point controller if a packet network is detected.