A mobile handset transmits a radio frequency (RF) signal. The mobile
handset determines when it is in close proximity to a Voice over Internet
Protocol (VoIP) capable device. If the mobile handset is in close
proximity to a VoIP capable device, then the RF signal to the base
station is disabled and a communications link is established with the
VoIP capable device such that a call can be made by the mobile handset
and routed as VoIP packets through the VoIP capable device.