User's Manual

Table Of Contents
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Off-net Calling Capability, Call Restriction, Call Access Control
The IPX-330 comes with 2 FXO ports and the IPX-2000 series integrates up to 8 calls via the IPX-21FO (4
FXO), IPX-21SL (2 FXO + 2 FXS) and IPX-21GS (4 GSM) modules to form a feature-rich PBX system that
supports seamless communications between the existing PSTN calls, analog phones, IP phones and
SIP-based endpoints.
Replacing Old PBX Easily without New Wiring
Cost-effective, easy-to-install and simple-to-use, the Internet Telephony PBX system converts standard
telephones into IP-based networks. It enables the service providers and enterprises to offer users traditional
and enhanced telephony communication services via the existing broadband connection to the Internet or
corporation network.
With the Internet Telephony PBX system, home users and companies are able to save the installation cost and
extend their past investments in telephones, conferences and speakerphones. The Internet Telephony PBX