3.4.1.2. NTP & Time Settings
If the IP Phone is set to obtain GMT offsets and NTP servers via DHCP (default), it receives the
following fields in the DHCP options:
‐
Primary Server
‐
Secondary Server
The device sends an NTP request to the Primary NTP server. If there is no response, the NTP
request is sent to the Secondary NTP server.
After obtaining the time from the server it adds the GMT offset in Time Zone and this is the
updated system time.
To manually configure the NTP server and GMT offset via DHCP, select Disable from the "Obtain
Time Zone From DHCP" drop‐down list and then click Submit.
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