USSD Unstructured Supplementary Service Data
V Volt
W Watt
WCDMA Wideband Code Division Multiple Access
WDM Wireless Mobile Communications Device Management USB
communications device class
WEEE Waste Electrical and Electronic Equipment Directive.
WHQL Windows Hardware Quality Labs, this is a Microsoft test and
approval process. The Device Drivers for Ericsson Mobile
Broadband Modules are signed by WHQL so that the
Windows operating system does not warn the user of
unknown or untested software.