Speco Technologies SIPT5 - Manual (Page 27)

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2.3.3 WAN Setting
This section tells you how to setup IP device’s WAN, DNS server and
DDNS server settings.
z STEP 1: Click the [WAN Setting] on the “Main Setup page”.
The “WAN setting page” is displayed as below
z STEP 2: Configure these settings with reference to the table below. If
you are still unsure what to set, contact your system administrator.