Planet Technology ISDN Internet Telephony PBX System IPX-1800N - Manual (Page 13)

PLANET IP PBX user’s manual
2.7 QoS Setup
To assure the bandwidth reserved for the outgoing VoIP traffic over regular data traffic from LAN, the
QoS Setup page offers three parameters to characterize the WAN link. The default QoS setting is
disabled because these parameters must be correctly given according to the actual WAN speed.
Enable QoS
1. Click Enable
2. Enter the WAN Uplink Speed, WAN Downlink Speed, and Uplink
VoIP Reserved (bandwidth).
3. Click APPLY.
For a popular 2M/256K ADSL program, the WAN uplink speed would be
256 and the WAN downlink speed would be 2048. The Uplink VoIP
reserved could be, say, 192 out of the total 256 kbps to allow 2 concurrent
G.711 calls.
Disable QoS Click Disable, and then click APPLY.
2.8 Virtual Server
You can configure PLANET IP PBX as a virtual server for remote users to access services such as
the Web or FTP at your local site via Public IP Addresses. With proper settings, PLANET IP PBX can
automatically redirect inbound traffic from WAN to local servers configured with private IP addresses.
In other words, depending on the requested service (TCP/UDP) port number, the IP PBX redirects the
external service request to the appropriate internal server (located at one of your LAN's Private IP
Address). To enable access servers in LAN from a machine beyond WAN, select System -> Virtual
Server to configure port mappings. Service ID names the service. Protocol and Port specify the
TCP/UDP port number on WAN IP to be forwarded to the Forward to Port of Forward to IP in LAN.
Say 192.168.1.5 is a Mail Server to be seen from outside, one should configure TCP port 25 to be
forwarded to 192.168.1.5 port 25.