Call Progression; Voip Trunking Example: Pstn To Pstn Via Voip; Figure 105 Voip To Pstn Example - Incoming Authentication; Table 84 Voip Trunking Call Progression - ZyXEL Communications P-2302HWUDL-P1 Series User Manual

P-2302hwudl-p1 series 802.11g wireless voip station gateway with built-in dect base station
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Figure 105 VoIP to PSTN Example - Incoming Authentication

13.8.4 Call Progression

The advantage of this kind of VoIP trunking is that once all the configuration is completed, the
caller just has to dial a speed dial entry from a phone connected to their ZyXEL Device and the
peer devices take care of the rest. This is what happens when headquarters wants to call their
Sales1 employee, which is the first entry in the speed dial screen.

Table 84 VoIP Trunking Call Progression

HEADQUARTERS
A person at A dials #01 from the phone
connected to the ZyXEL Device.
The ZyXEL Device at A inspects the number and connects to the remote peer device at
B.
The remote peer device inspects the number and requests authentication in order to
forward the call.
The ZyXEL Device at A sends outgoing authentication to the remote peer device.
The remote peer device confirms that the username and password match an account in
its incoming authentication list.
Sales1 picks up and the call commences.

13.9 VoIP Trunking Example: PSTN to PSTN via VoIP

This example shows how to configure a PSTN to PSTN call with a VoIP link. It also shows
how call rules can be used to automate VoIP trunking.
P-2302HWUDL-P1 Series User's Guide
BRANCH OFFICE
The remote peer device forwards the call to Sales1.
Chapter 13 VoIP Trunking
SALES1
179

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