A Traffic flow template, also called an application template, is a series of data filters such as CoS (Class of Service), PDP context and security settings, that allow the GPRS core network to classify packets received from an external network into the correct PDP context. When incoming data arrives at an access point in the core network, a packet classifier will make a PDP context selection based on the traffic flow template, and map the incoming data packets into the PDP context with the correct CoS attributes. The use of a traffic flow template allows multiple PDP contexts to be associated with the same PDP address.