... to connect with 2 DSS with 128 keys 3.Pay Telephone 4.Transfer, Hold, Paging, Conference Detailed Product DescriptionConsole Phone Info ... , double-row show. 2.Tine and the number of current telephone and incoming of intercom numbers. 3.With one-touch dialing ... . 4.Function of Key Phone-Hand-free, Redial, Conference, Hold, Memory, Monitor, and disconnect outside line, save and check 50 incoming ...