1. ENUM User Guide
  2. Non-ENUM or DNS Query Handling
  3. Zone Configuration
  4. Default Zone

4.1.6 Default Zone

The default zone serves as a catch-all mechanism to ensure that all incoming DNS queries, regardless of the requested domain, are being processed appropriately. This means that even if a specific zone hasn't been defined in the DNS Zone Config MO, the vENUM application steps in to provide an NXDOMAIN response to the client.