PPP (Point-to-Point Protocol) is designed for simple links which transport packets between two peers. These links provide full-duplex simultaneous bi-directional operation and are assumed to deliver packets in order. PPP provides a common solution for the easy connection of a wide variety of hosts, bridges and routers.  It is the Internet Standard for transmission of IP packets over serial lines. PPP supports async and sync lines.

 PPP also established a standard for the assignment and management of IP addresses, asynchronous (start/stop) and bit-oriented synchronous encapsulation, network protocol multiplexing, link configuration, link quality testing, error detection, and option negotiation for such capabilities as network layer address negotiation and data-compression negotiation. PPP supports these functions by providing an extensible Link Control Protocol (LCP) and a family of Network Control Protocols (NCPs) to negotiate optional configuration parameters and facilities. In addition to IP, PPP supports other protocols, including Novell's Internetwork Packet Exchange (IPX) and DECnet.

RADCOM supports a wide range of protocols from the PPP family. RADCOM had various products that allows monitoring protocols from the PPP family, and protocols encapsulated above them, including TCP/IP.