4G is the successor to 3G. It offers faster internet speeds, higher quality calls, and an overall improved user experience.

3G is a set of international standards that enables high-speed data transfer for mobile communications.

GSM is a standard developed by ETSI to describe the protocols for second-generation (2G) cellular networks.

GPRS laid the groundwork for today's high-speed, high-capacity networks.

LTE is a high-speed wireless communication standard for mobile devices and data terminals.

IPsec is designed with three primary objectives: authentication, encryption, & data integrity.