Voip Applications; Basic Usage: Stand Alone Voip Gateway - NetComm V431 Quick Start Manual

SeCTION 4:

4.1 Basic Usage: Stand Alone VoIP gateway

The Fig 4-1 shows a diagram in which the V431 is used as a stand alone VoIP gateway.
FXS
Port 3
V431
Figure 4-1: V431 works as an stand alone VoIP box
General FXS operation behavior:
The operation of the FXS ports of the V431 is straight forward: lift up a handset and dial the destination
number to make VoIP calls.
General FXO operation behavior:
The FXO port of the V431 allows the user to route calls between the PSTN and VoIP networks. Following are
scenarios of different types of call routing.
1) When an incoming VoIP call reaches the VoIP phone number of the FXO port, the FXO port will pick up the
landline that it is connected to. A dial tone generated by the landline will be provided to the calling party
through the VoIP voice channels. At this point, the user is able to dial the destination number (a landline
or mobile number), and the V431 will use the landline to establish the call.
Call Model 1:
1. Calling party (from VoIP network) calls the VoIP number associated with the FXO port of the V431
(called party);
2. The FXO loops the landline (off hook action) and dial tone is generated by the landline;
3. Calling party inputs real destination number (a landline or mobile number)
4. The landline connected to the FXO port of the V431 tries to establish the call through the PSTN network.
YML859 Rev1
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VOIP APPLICATIONS

FXS
FXO port
Port 1
WAN port
Broadband Connection
Figure 4-1: V431 works as a stand alone VoIP box
PSTN
VoIP
V431 VoIP Gateway Quick Start Guide V431 VoIP Gateway Quick Start Guide
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