Hotel telephone -One key connect(+10,+8,+5,+3,+0). -FSK/DTMF caller ID -Auto select line -Local area code setting ... /hotel phone -One key connect(+10,+8,+5,+3,+0).-FSK/DTMF caller ID.-Receive and store incoming number while another ... indicator for incoming information.-Calendar and auto adjust time under FSK system.-80 incoming number and time store, review, callback and ...