A system and method for processing caller information across heterogeneous networks is provided. An enterprise application receives a message from a name resolution adapter over a computer network. The message includes caller attributes and port location information. The enterprise application uses the caller attributes to retrieve a caller profile. The enterprise application determines whether to accept the call using the caller profile and whether a call exists on a telephone port corresponding to the port location information. Once enterprise application decides to accept the call, the enterprise application retrieves service subscriptions corresponding to the caller and processes the call using the caller's service subscriptions.