... system, then, pick up the phone, do not mind the any sound come from the line, you can dial: 1 # - - - - - #; 2 # - - - - #; --; 9 # - - - - #, (when ... you dial any number, there is a ... ¡¯t need to set again, but if you want to set, you can do as this: dial the number 1* , then, push the ...