Chapter 1 Introduction
The IP PHONE is a full-featured IP-based telephone system, which provides VoIP service
on LAN or any IP based environment. By using IP environment for voice communication,
company or individual can save lots of expenses and make data and voice network
converged.
IP PHONE also supports PSTN analog line connection. Therefore, it can perform as the
same as traditional POTS (Plain Old Telephone Service).
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