vicidial.org

The number you have dialed is valid but the person who lives there
is different to the one in your database.

The person you call asks you to call him in 2 hours, one week, or 1 month..

if the name is incorrect or any criteria for that matter (address, city, zipcode) whatever it may be you can modify that leads directly from the "live call" page.

If a person asks to call back in a couple hours days/weeks/months whatever it is you can leverage the callbacks feature.

-Art