Approaches for managing machine-to-machine (M2M) wireless devices are disclosed. M2M wireless devices may be configured to utilize service classes in order to implement network access policy control. Packets generated by an application running on the wireless device are inspected, for example using Deep Packet Inspection (DPI). Service class may be assigned based on patent contents such as payload, transport-layer criteria, or communication protocol in use. Service class assignment proceeds according to a rule set which may be remotely configurable. Packets may be buffered and their transmission may be deferred pending service class assignment. Spoofing of the intended recipient and/or the application may be performed while the packets are buffered and/or inspected.