You can store phone numbers to reach the owner in DealMachine
You can edit those numbers if necessary!
Just open a deal and scroll down to the Owner Phone Numbers section.
Scroll the list of phone number to the right and click the number you want to edit.
Edit the number.
NOTE: If you don't see a edit option, that means the phone number came from an enhanced search. It is not possible to edit results from an enhanced search. As an alternative to editing, you can always manually add new phone numbers to a deal.