IVR timeout

Hi, i am integrating a cme with freepbx and migrating the previous ivr on cisco (unity express) and using the freepbx one, the ivr has several options for dialing, ex. press 1 (go to misc app xxx), press 2 (go to misc xx2)… press 9.

When incoming calls comes to ivr, there is not time for dialing the extension, they go directly to the dialing options, there is not to much time for dialing extensions. How can i increase the interdigit timeout or the timeout options on ivr?