Patent ID: 7783618

Claim:
A system, comprising: an application server (AS) database configured to store AS information concerning an AS configured to provide multimedia services, the AS information being stored in an AS records in the AS database, an AS record including an AS class of service (COS) identifier, the AS database employing the AS COS identifier as a primary key; and a user database configured to store user information concerning a user subscribed to access a service provided by an AS, the user information being stored in a user record in the user database, a user record including one or more initial filter criteria (IFC) entries, an IFC entry being configured with an AS COS identifier; the AS database and the user database being operably connectable, via a home subscriber server (HSS) logic, to a call session control function (CSCF) logic configured: to receive a message associated with a user; to retrieve a user record concerning the user from the user database; to evaluate the message in light of an IFC entry associated with the retrieved user record; and to selectively direct the message to an AS based, at least in part, on determining an AS address using the AS database as indexed by the AS COS identifier available in the IFC entry.