VII. NAT and Firewall
If this phone locates within a local area network and you want to place a call to public internet, you must configure your phone to traverse the NAT and firewall currently behind.
1.To determine whether you resides on public internet or local area network
z『Main Menu』=>『8.Advanced』/『4.System status』 or press 【F7】(default is “Network info”).
zGo to 『1.Network』 and use【+】and【-】to navigate active network configuration: host IP, MAC address, active primary DNS IP and optional secondary DNS IP (In that order).
zIf your host IP is within any of the listed ranges, then your
i.10.0.0.0 ~ 10.255.255.255 (10.xxx.xxx.xxx).
ii.172.16.0.0 ~ 172.31.255.255 (172.16.xxx.xxx ~ 172.31.xxx.xxx).
iii.192.168.0.0 ~ 192.168.255.255 (192.168.xxx.xxx).
Note: if your host IP is 127.0.0.1, you should reconfigure your network to acquire a valid IP.
2.Public Internet Configuration
z『Main Menu』=>『6.Network』/『4.NAT & firewall』/『2.UDP traversal』
zEnable “1.Full access” by press 【HOLD】
3.LAN Configuration to Traverse NAT/Firewall
There are basically 2 options for CPE to traverse NAT/Firewall:
(a)Option 1: Set up a static route in the NAT gateway (Recommend)。
(b)Option 2: Use STUN to measure out ports.
Please adopt suitable option based on your network configuration.
Note: some SIP ISPs may provide
4.
zContact your network administrator and acquire at least 7 consecutive UDP ports mapped from the NAT to your
For example:
i.NAT IP = 210.95.168.1 (you may detect your NAT IP by STUN from 『Main Menu』=>『6.Network』/『4.NAT & firewall』/ 『1. STUN』/ 『2. Diagnose NAT』)
ii.The network administrator has mapped UDP port 10101~10107 from NAT to your
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