Voip Network Configuration Using Smg-400 - Samsung SMG-400 User Manual

Chapter 1
1-8
Overview
VoIP Network Configuration Using
SMG-400
A VoIP network can be constructed using SMG-400, PBX, and KTS as the following figure shows.
Tandem Gateway Mode
The SMG-400 can be run in the tandem gateway mode. It connects the SMG-400 to PBX or KTS,
and uses the SMG-400 as a gateway without internal subscribers.
Head Office
subscriber A
Legacy PBX
Tandem Gateway
VoIP
Internet
VoIP
Branch Office
SMG-400
LAN STATUS LOOP SLC
PWR TX L1 L3 P1 P3 P1 P3
OPER RX L2 L4 P2 P4 P2 P4
SMG- 400
Media Gateway
Tandem Gateway
subscriber B
SIGK(Gatekeeper)