This read-create value, measured in octets per hour, configures the GPRS QoS mean data rate the device requests as its expected average throughput over time. An admin sets this to describe the connection's typical, sustained data usage to the network, which the carrier uses for capacity planning and plan enforcement rather than instantaneous burst handling. For example, a device used only for periodic small telemetry uploads would request a low mean rate here, while one serving as a primary WAN link would request a much higher sustained rate.