Internet protocol (IP) data service providers may provide several services over a single communications channel and/or circuit. For example, the provider may deliver public services such as Wi-Fi, content, gaming, etc. as well as business-critical “back-office” services such as credit card processing,...http://www.google.ca/patents/US7958256?utm_source=gb-gplus-sharePatent US7958256 - System and method for providing application categorization and quality of service in a network with multiple users
