ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite, User Manual

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Omni.Net Lite User’s Guide
19 Chapter 1 Introduction
1.1.1.5 Bandwidth-On-Demand
The TA dynamically allocates bandwidth by dialing and dropping connections according to
traffic demand.
1.1.1.6 PAP and CHAP Security
The TA supports PAP (Password Authentication Protocol) and CHAP (Challenge Handshake
Authentication Protocol). CHAP is more secure than PAP; however, PAP is readily available
on more platforms.
1.1.1.7 Upgrade Firmware
Upgrade firmware using Terminal Emulation software such as Hyperterminal.
1.1.1.8 Supplementary Voice Features
To take full advantage of the supplementary voice services available through the TA's phone
ports, you will need to subscribe to your phone company for them. The TA supports the
following supplementary voice features on both of its analog, or POTS (Plain Old Telephone
Service), phone ports:
• Call Waiting
• Three Way Calling
• Call Transfer
• Call Forwarding
1.1.1.9 Switch Type
The TA supports the DSS-1 switch type.
1.1.2 TA and ISDN Interfaces
The TA comes with an S/T interface that connects to an NT-1 (Network Termination 1) device
(supplied by the phone company in Europe).
In the following figure:
• All devices that are designed for ISDN are designated Terminal Equipment 1 (TE1).
• All other communication devices that are not ISDN capable, but have a POTS telephone
interface (also called the R interface), including ordinary analog telephones, FAX
machines, and modems, are designated Terminal Equipment 2 (TE2).
• The Terminal Adapter (TA) connects a TE2 device to an ISDN S/T bus.