ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite - Manual (Page 29)

Omni.Net Lite User’s Guide
Chapter 2 Using the Utility 28
Figure 4 System
2.4 RS-232 Port: Local DN (Directory Number) and Call Type
This section shows you how to configure the data call number and type.
2.4.1 Introduction to PPP
Point-To-Point Protocol (PPP) is designed for simple one-to-one links. These links provide
full-duplex, simultaneous, bi-directional operation, and are assumed to deliver packets in
order. PPP is intended to provide a common solution for easy connection for a wide variety of
hosts, bridges and routers.
In the process of configuring, maintaining and terminating the point-to-point link, PPP goes
through several distinct phases, as specified in the following simplified state diagram: