Hi Alpha 12 GTR, Cox has been working all year on a project to update our telephony network by removing outdated Circuit Switch technology and replacing it with Packet Switch technology. The upgrade in phone network technology will allow us to provide customers with new phone features like Simultaneous Ring. Simultaneous Ring is necessary to filter out spam calls via tools like Nomorobo. We're working to migrate existing Cox Digital Telephone customers to the new platform as quickly as we can. Each Cox market is in the process of contacting current Cox Digital Telephone customers and scheduling conversion appointments. Please be patient just a little while longer! You’ll be able to set up Nomorobo very soon. -Becky, Cox Support Forums Moderator