In the Menu object Settings for DTMF input tab you can, depending on your access rights, specify the following:
whether the menu object is to be active,
whether the DTMF buffer is reset before execution of the menu choice,
the name of the call parameter where the DTMF (the menu choice) is stored,
Which Max limits that apply for DTMF:
Time before the first character (DTMF) must be entered.
Time allowed between the touches.
Maximum number of entered characters.
Which Control characters that shall be used for the DTMF:
Stop, i.e. to specify that the input is finished ( in the cases where more than 1 character is allowed).
Repeat, i.e. the character to be entered to play the menu phrase again.
You can also see whether there are any timers configured for the menu object. If so, a clock icon is seen beside the tab title on the other tabs; Phrases and Exits.