Mitel 6867i Administrator's Manual page 211

Use the following procedure to enable/disable and configure the NTP Servers using the Mitel
Web UI.
MITEL WEB UI
1. Click on Basic Settings->Preferences->Time and Date Setting.
2. Enable the "NTP Time Servers" field by checking the check box.
(Disable this field by unchecking the box). Default is disabled.
3. Enter an IP address or qualified domain name in the "Time Server 1", "Time Server 2",
and/or "Time Server 3" field(s) to specify the location of the NTP time server.
4. Click Save Settings to save your changes.
Network Settings
4-58