How is the PBX connected to remote extensions?
When the PBX is connected to a remote extensions via public IP network without using IP-VPN, address
translation techniques (e.g., NAT/NAPT) are used. These methods prevent VoIP communications from being
carried out effectively. In such cases, the use of an SBC will avoid this problem.
Note
•
An SBC is not required for:
–
Connections via a Wide Area Ethernet or LAN
–
Connections via IP-VPN
•
An SBC is required for:
–
Connections via a public IP network
Router
Global IP Address
Domain
Local IP Address
Domain
Local IP Address
Domain
Connection via IP-VPN
IP-VPN
Router
Switching Hub
Switching Hub
Local IP Address
Domain
Connection via Wide Area Ethernet or LAN
Wide Area
Ethernet/
LAN
Installation Manual
309
8.1.6 Network Configuration
Summary of Contents for KX-NS500
Page 16: ...16 Installation Manual Table of Contents ...
Page 28: ...28 Installation Manual 1 4 Data Security ...
Page 58: ...58 Installation Manual 2 3 3 System Capacity ...
Page 78: ...78 Installation Manual 3 1 3 Using CTI Applications ...
Page 114: ...4 Hook the main unit on the screw heads 114 Installation Manual 4 2 10 Wall Mounting ...
Page 286: ...286 Installation Manual 6 1 Methods of Stacking Expansion Units ...
Page 300: ...300 Installation Manual 7 1 6 Troubleshooting by Error Log ...
Page 332: ...332 Installation Manual 8 6 Port Security ...
Page 337: ...Installation Manual 337 Notes ...