This creatable/settable object configures the UMTS QoS traffic class the device requests for a given profile's data session, categorizing the kind of traffic (such as conversational, streaming, or background) it expects to carry. An admin sets this to request QoS treatment appropriate to the profile's intended use, since the network's actual QoS handling depends on which traffic class is requested. For example, a profile intended for latency-sensitive traffic would request the conversational traffic class rather than the background class used for a bulk-data profile.