Trendnet VoIP Gateway User Manual

TVP-221H User’s Guide 

 
Draw an application diagram to illustrate / clarify application including: 
1.  Local gateway: IP setup 
2.  Local gateway: local telephone number setup 
3.  Local gateway: remote gateway IP & remote telephone number setup 
 
Note: The Diagram below of Gateway A & B  could be any combination of either the 
TVP-224HR (connected to switch by WAN port) or the TVP-221H (Connected by LAN 
port). The switch that joins these two gateways serves the purpose of initial lab 
configuration. Under this configuration, both GW must be in the same IP segment. 
Once the dial plans have been entered and tested, the switch would be replaced by 
the public internet and the gateways would then have to be updated with the field 
application Internet Access Settings (eg. Public IP Address, Subnet Mask and 
Gateway IP Address). In addition, all remote destinations in the dial plan must be 
updated with the actual application / field IP Addresses. 
 

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L 

This diagram serves the purpose of illustrating the possible analog 
phone / PBX / PSTN integration / applications of the Gateway.  
However, disconnect cadence provided by your phone company for 
your PSTN line and disconnect cadence provided by your PBX may 
require additional matching with the gateway.  This will require the 
assistance of your PBX supplier and /or Systems Integrator. Please 
also see User’s Guide for additional information. 

 
 
 
Scenario description:  Two gateways connected by a switch.  
 
There are two gateways connected by a switch. They are generically labeled 
“Gateway” but could be any combination of either the TVP-224HR (connected to 
switch by WAN port) or TVP-221H (Connected by LAN port).  Theoretically, GW A is 

 

FXS 

FXS 

PBX 

801 

800 

Gateway A  

192.168.1.20

 

Gateway B  

192.168.1.55

 

PSTN 

FXS 

FXS 

FXO 

FXO 

9 

TE100-S5Pplus

 

Internet Call Segment - No Charge 
Local Call Segment - Local Charge 

PSTN

9