Outbound CTIOS preview dialing need to edit phone number before accept and dialing out

I am customizing CTIOS for one our prestigious client, we are in process of implementing Cisco Dialer for the client and as per the request i am customizing CTIOS, i have done most of the customization requested by client expect the phone number edit during preview mode.

Client request:

Want to edit the phone number(incase if they get invalid number from the list they have edit the number before dial out) in the preview mode before accept and dial the record

Tried: i have tried override the Phone Number and ANI after hitting the accept button, but when dialing it was dialing a original number from the Dial list.

I am struck in this point and any help is much appreciated and life save.

Thanks

The solution doesn't give you a way to modify the number before dialing. That would need to be an enhancement.

What version of the system is this?