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Standard Application<br />
<strong>AP</strong>-GS1002 2-<strong>Port</strong> <strong>FXS</strong> <strong>GSM</strong> <strong>Gateway</strong><br />
<strong>GSM</strong><br />
Network<br />
<strong>AP</strong>-GS1002 <strong>GSM</strong><br />
<strong>Gateway</strong><br />
MG<br />
MG<br />
MG<br />
New York Seoul<br />
PSTN<br />
<strong>FXS</strong>0<br />
<strong>FXS</strong> Analog Voice Interface<br />
FXO Analog Voice Interface<br />
<strong>FXS</strong>1<br />
Voice+Data, Ethernet or WAN Interface<br />
EMS<br />
Elementary<br />
Management<br />
System<br />
TRUNK n x E1 Voice Interface for PSTN Inter-working<br />
Media <strong>Gateway</strong><br />
IP Network<br />
(WAN)<br />
Ethernet 0<br />
Voice<br />
Ethernet 0<br />
GK<br />
Gate Keeper<br />
SIP Proxy Server<br />
BS<br />
Billing Server<br />
Voice<br />
Leased Line/ATM/Frame-Relay/IP Router, xDSL/Cable Modem, etc.<br />
AddPac <strong>AP</strong>-GS1002 2-<strong>Port</strong> <strong>FXS</strong> <strong>GSM</strong> <strong>Gateway</strong><br />
Analog Phone<br />
<strong>FXS</strong>0<br />
<strong>FXS</strong>1<br />
PSTN<br />
<strong>GSM</strong><br />
Network<br />
<strong>AP</strong>-GS1002 <strong>GSM</strong><br />
<strong>Gateway</strong><br />
www.addpac.com 22
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