The present invention is directed to a telephony system that includes a
first network and a second network. The system includes a first network
call control system configured to provide intelligent network control
services to the first network. The first network call control system is
also configured to store intelligent network control data corresponding
to the intelligent network control services. A second network call
control system is configured to provide control services to the second
network. A secure channel couples the first network call control system
to the second network call control system. The secure channel is
configured to securely transmit intelligent network control data from the
first network call control system to the second network call control
system. As a result, the second network call control system provides the
intelligent network control services to the second network.