ZyXEL p-2302hw-p1 用户手册
P-2302HW/HWL-P1 Series Quick Start Guide
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3.3 VoIP Trunking Overview
VoIP trunking connects an IP network (like the Internet) and the Public Switched Telephone Network (PSTN).
PSTN includes the world’s circuit-switched telephone network which is composed of fixed and mobile
telephones. VoIP trunking allows you to create VoIP links which PSTN (Public Switched Telephone Network)
callers can use to:
PSTN includes the world’s circuit-switched telephone network which is composed of fixed and mobile
telephones. VoIP trunking allows you to create VoIP links which PSTN (Public Switched Telephone Network)
callers can use to:
• Make phone calls via the Internet - Make a PSTN call to the P-2302HW/HWL-P1 and it forwards the call to any
SIP based VoIP phone.In the example below, we call the P-2302HW/HWL-P1 (B) from a regular phone (A), the
P-2302HW/HWL-P1 then forwards the call to a VoIP phone (C).
P-2302HW/HWL-P1 then forwards the call to a VoIP phone (C).
• Save on long distance calls - The P-2302HW/HWL-P1 creates a VoIP link which can be used to connect to a
PSTN phone in another country, province, region and so on. Below is an example of a VoIP trunking call. A
calls the P-2302HW/HWL-P1 (B), B makes a VoIP connection to another VoIP trunking device C and C for-
wards the call to a PSTN phone D.
calls the P-2302HW/HWL-P1 (B), B makes a VoIP connection to another VoIP trunking device C and C for-
wards the call to a PSTN phone D.
See the User’s Guide for information on how to configure VoIP trunking.
Viewing Your Product’s Certifications
1 Go to
www.zyxel.com
.
2 Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.
3 Select the certification you wish to view from this page.
3 Select the certification you wish to view from this page.