GSM/UMTS
CO
If ETERNITY NE is connected to a Private Network (Behind the NAT),
• Connect the Extended IP Phone, or any Open IP Phone to the LAN Switch.
• Register any SIP device (Extended IP Phone/ Softphone client or Open IP phone) on the public
network as SIP Extension. In this case, configure Port Forwarding for SIP and RTP on the
Router.
GSM/UMTS
CO
14
Ethernet
WAN
SLT Extensions
Ethernet
WAN
SLT Extensions
SIP Extension
IP IP
Modem/
Router
LAN Switch/Hub
SIP Extensions
LAN Switch/Hub
SIP Extensions
Matrix ETERNITY NE Quick Start
SIP Extensions
IP
DSL Modem/
Router
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