During modern standby, the SP3022 is turned off and periodically scans for USB wake when computer wakes up from standby. The device can sometimes miss the USB wake command and does not wake up.
Figure 1: The speakerphone appears turned off and not responding
In the device manager, there maybe an instance of USB Device descriptor failed;
Figure 2: (English Only) Device Manager
Figure 3: (English Only) Dell Speakerphone SP3022 Firmware Update Utility