Glossary Search 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 1 2 3 4 5 6 7 8 9 0 4 4G 4G In mobile telephony, fourth-generation protocols. 4G will be based entirely on IP and may reach access speeds of between 100Mbps for mobile reception and 5Gbps for stationary reception, assuring a high-quality, secure service.