Otherwise, please check WAN port's configuration parameters and network.
5.2 System update
Select "System Maitainence->Software Update" setting page to upgrade positon. During
upgrade, keep the power on, and don't press the restart button. After the upgrade is completed, the
device will automatically restart.
If done incorrectly, it can cause irreversible damage. Please be cautious.
4-/8-Port SIP Internet Telephony Gateway
Figure 5-2-1 System update
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VGW-x10 Series