Enhance IVR configuration to customize timeout conditions including how many times to repeat announcement

My understanding is that currently an IVR is coded as follows:

1) Play IVR Message

2) Await DTMF Key from caller for short period.

If no key is received, the process is repeated 3 times before the IVR "times out", and then either DISCONNECTS the call or transfers to an extension.

It would be much more usable if you configure:

1) How many times to repeat before timing out (Currently hard coded to 3)

2) How long to wait for DTMF before either timing out or repeating.

2) Provide more choices for timeout like connecting to a voicemail etc.