Voice gateway mode – Welltech SIPPBX 6200 V.x.2 Quick Start User Manual
Page 5

Welltech Computer Co., Ltd.
In this mode, SIPPBX will act as a SIP-aware NAT/Firewall server. There are 3
Ethernet ports will be used:
WAN Interface: Public IP address
LAN Interface: Private IP address
Enhanced Service Interface: Private IP address
The user seated in the private IP network including VPN users will register to
LAN interface. Branch office or traveler user will register to WAN interface.
SIPPBX will automatic detect the network status and do the NAT transversal
when needed.
Figure 1.2
PSTN
LAN
Voice Gateway Mode
WellGate 3804
WellGate 3504
SIPPBX 6200
Attendant Console
Soft Phone 362
Account=0
Ext: 101
Ext: 102
Ext: 301
Ext: 302
Ext: 201
Ext: 202
Ext: 999
Ext: 203
Account=1
LAN Interface
192.168.16.10
WAN Interface
211.32.3.5
WAN
SIPPBX 6200 Quick Guide
– V x.2
5
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