5.8.3 Installing SIP Phones at a Remote Site
If an SBC (Session Border Controller) is present on the same local network as the KX-NS300, you can install
SIP phones at remote sites without needing to configure special network settings (NAT traversal, etc.).
This section provides information about the procedure for connecting SIP Phones at a remote site that has
SBC hardware.
When SIP phones in remote sites use the internet to communicate with the PBXs, use the HTTPS protocol for
security. If the connection is within a VPN and protected, you may use the HTTP protocol.
Main Site (Headquarters)
IP-PT
SBC
Router
Switching Hub
KX-UT series
SIP phone
Remote Site
Router
Main Unit*
1
Switching Hub
Internet
: RTP packets
*1
KX-NS300
Note
•
Install the SBC in the same LAN as the KX-NS300.
•
A KX-NS300 can work with only one SBC. Also, multiple sites can share an SBC.
•
A KX-NS300 can support up to 20 remote extensions at the same time via SBC when using the HTTPS
protocol.
•
All the RTP packets in between the main site and the remote site is routed to the SBC for security and
for IP address conversion.
•
When settings of remote extensions being used at remote sites are changed at the KX-NS300 at the
main site, the reflection of the changes to the remote extension may require some time due to data
transfer protocols.
Programming the KX-NS300
Follow the procedures below to configure remote port settings using Web Maintenance Console.
Note
For the procedures below, program WAN side IP information of the router at the main site.
This information is sent to KX-UT series SIP phones at the remote site after completing all programming.
For Site Property Settings
1.
Click
Setup
®
PBX Configuration
®
Configuration
®
Slot
.
2.
Move the mouse pointer over
System Property
.
A menu will be shown under the mouse pointer.
3.
Click
Site
.
4.
Click the
SIP Extension
tab.
5.
Click
Advanced Setting for Remote SIP-MLT
.
Program the WAN side IP information in
Setting parameters assigned to Remote SIP-MLT
.
226
Installation Manual
5.8.3 Installing SIP Phones at a Remote Site
Summary of Contents for KX-NS300
Page 92: ...4 Hook the main unit on the screw heads 92 Installation Manual 4 2 10 Wall Mounting...
Page 150: ...150 Installation Manual 4 13 Starting the KX NS300...
Page 248: ...248 Installation Manual 5 11 Automatic Configuration of Mailboxes...
Page 252: ...252 Installation Manual 6 1 Methods of Stacking Expansion Units...
Page 294: ...294 Installation Manual 8 5 Port Security...
Page 298: ...298 Installation Manual 9 2 System Prompt Languages...
Page 299: ......