1. Import DNC List
TxDialer > Campaign [nav bar] > DNC Registry
2. Set DNC List in Campaign Settings
In campaign settings, set the DNC List to the newly created DNC Registry name as seen in below image.
a. Each time contacts are imported, they will be designated as DNC (Do Not Call) within the contacts if their numbers match any entries in the DNC registry
b. DNC check can also be run directly from the Campaign List page or Contacts > Filtered Actions