1.1 Information about IP Telephony Service

WAN

Internet

 

STUN

Fixed IP Address

STUN

SIP

SIP

Server

Server

Server

ISP/ITSP

ISP/ITSP

LAN

Router

(NAT enabled)

Switching

Hub

PC

IP-PT

PBX with

V-SIPGW16 Card

Note

If an ISP/ITSP uses a device such as SBC (Session Border Controller), you may not have to enable the NAT Traversal feature.

A STUN Server is supplied by an ISP/ITSP, and not included with the PBX.

6

Programming Manual for Virtual SIP Trunk Card

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Panasonic KX-TDE100 manual Wan