Yes, that is the power saving change that did not require enabling the full eDRX mode. It does not significantly affect power usage when transmitting and receiving, however it does reduce it when idle, and in sleep with network standby modes. The power usage should be lower with Device OS 5.5.0 or later and the R510 modem than it is with the R410. In network standby mode, the R510 usage is half to a third of the R410. The power improvement is 5.5.0 only for the R510.