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Chapter 1 Introducing the ZyXEL Device
P-2302HWUDL-P1 Series User’s Guide
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1.1.2 VoIP Trunking Gateway
VoIP trunking allows you to use your ZyXEL Device as a gateway between VoIP and PSTN
networks.
Figure 2 ZyXEL Device as a VoIP Trunking Gateway
In this example, you use your analog phone (A) to call the ZyXEL Device (B). The ZyXEL
Device changes the call into VoIP and sends it via the Internet to another VoIP phone(C).
1.1.3 DECT Base Station Feature
Your ZyXEL Device has a built in Digital Enhanced Cordless Telecommunications (DECT)
base station. DECT is an ETSI (European Telecommunications Standards Institute) standard
for digital cordless phones which specifies how they transmit, receive and process data and
voice communication. You can register any DECT GAP phone with the ZyXEL Device.
Figure 3 DECT Base Station Feature
You can use your DECT phone to make calls to other DECT phones registered with the
ZyXEL Device (A). These calls are referred to as internal calls.
You can also use your DECT phone to make VoIP calls (B). For the PSTN models, you can
also make calls via the PSTN line (C). These types of calls are referred to as external calls.
A
B
C