Glossary Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business. Show only animated 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z U_Port UARFCN UAS UDP UE UL ULP UMTS UNI Unicast Address Uniform Resource Locator (URL) Universal Serial Bus (USB) Unshielded Twisted Pair (UTP) UPC UPI UR/LLC URL USB User Datagram Protocol (UDP) User Network Interface (UNI) User Plane UTP