An information server according to one embodiment of the invention
includes a communication interface configured to communicate over a
communication network and a processing system connected to the
communication interface. The processing system is configured to receive
one or more digital content sets, receive a caller system identifier and
a called system identifier from the caller system, select a digital
content set from among the one or more digital content sets using the
caller system identifier and the called system identifier, and provide
the selected digital content set to a called system corresponding to the
called system identifier prior to the caller system establishing a
communication channel to the called system.