A method for establishing a secondary communication channel between at
least two computing devices over a network medium through use of a
primary channel connects a first computing device with a first telephonic
unit and a second computing device with a second telephonic unit. If the
two telephonic units are in communication with each other over a primary
channel, and communication channels are established between the computing
devices and their respective telephonic units, then the first computing
device transmits its location information to the second computing device
over the primary channel. A connection is then established between the
second computing device and the first computing device over a secondary
communication channel.