Obihai online device manual: www.obihai.com/OBiDeviceAdminGuide.
To configure your Obihai you'll need your SIPID and SIP Password.
Follow the instructions in the device manual to access your Obihai's Web Server-Based Local Configuration menus.
Note: Un-check the 'Default' box when changing settings from their default value.
Sipgate's NTP Server is: ntp.sipgate.net : To test your phone's configuration, please dial the following sipgate numbers: