Talk: IVR missing phone options (opt-out/in, callback)

I am setting up an IVR system for our clients - but they want the Opt-out possibility and call back. This is not available to set up in the IVR system, so we have had to make a workaround from their current phone company where they use the IVR from their system and then it transfers the call to the three different departments. 

So they have to buy three numbers for it to work - will you at some point make it possible to add these options to the IVR?