19. A network communications system for placing a call over a network, the call being placed through a set of feature modules in the network, each feature module being independent and communicating with other feature modules through featureless internal calls through the communications network, the system comprising: a first interface for receiving a request from a customer to place a call to a destination, the call having associated with it a set of call features; and a set of connections for connecting the call to the set of feature modules and to the destination, a path of internal calls from the requesting customer over the set of connections including feature modules representing all features associated with the requesting customer's request.
19. A network communications system for placing a call over a network, the call being placed through a set of feature modules in the network, each feature module being independent and communicating with other feature modules through featureless internal calls through the communications network, the system comprising: a first interface for receiving a request from a customer to place a call to a destination, the call having associated with it a set of call features; and a set of connections for connecting the call to the set of feature modules and to the destination, a path of internal calls from the requesting customer over the set of connections including feature modules representing all features associated with the requesting customer's request. 24. The system of claim 19, wherein at least one of the features is associated with the call according to customer subscriptions.