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Attension: in the textbox of Extension, the value you set is limited to a range, you can adjust the
range in the following screen to meet your requirement. Please select the Options option from the
vertical menu on the left, then you can get the following screen:
3.7 Ring Groups
Define Ring groups to dial more than one extension simultaneously, or to ring more than one
phone sequentially. This feature may also be called Hunt groups.
Please select the Ring Groups option from the vertical menu on the left of the main page, then
you can get the following screen: