A messaging system component provides for a screening of an incoming call
from a telephony device of a plurality of telephony devices. The
messaging system component is associated with a network and conforms to a
signaling protocol of the network to communicate with the network. The
messaging system component is located in a peripheral relationship to the
network which allows for the addition of providing for the screening of
the incoming call from the telephony device without modification to an
architecture associated with the network.