Ricoh 4016 Series - Manual (Page 176)

O THER W AYS TO F AX 5.13
5
Sending a Flash/Recall/R
Some special phone services require a switch-hook signal for
proper operation. For example, if you have call-waiting, you can
put a call on hold and take a second call on the same line by
pressing the Flash/Recall/R button.
1 When you are on the telephone and hear the call waiting
signal, press Flash/Recall/R. The first caller is on hold
and you are speaking to the second caller.
2 Press Flash/Recall/R again to talk to the first caller again.
N OTE : If you do not have a special service that uses the switch-
hook signal, do not press Flash/Recall/R during a call. If you
do, you could disconnect the line.