how does one connect 2 telephones to the same line.. in loop through configuration

i figured out that the star configuration is much more superior..but i still cant seem to figure out how can one connect telephones in loop through

 

Two or more analog phones can go on the same line by simply putting them in parallel. They'll all ring when the ring voltage is applied. Any one of them that is picked up will short the ring line, telling the central office (or phone switch) that a reciever is off the hook. The voice pair of wires will continue to function as full duplex.

Digital phones won't work this way. They have to have a dedicated home run line to the phone switch. Ditto for V/IP and a server.