ORDER and PRIORITY Use a fixed value of 100 for ORDER in ENUM NAPTRs NAPTRs within a zone should not normally have the same ORDER and PRIORITY field values. If these are received, process in the sequence they appear in DNS message. Process Enumservices in a “compound” NAPTR in left-to-right sequence Consider ORDER and PRIORITY values only within the current zone. Recalculate if entering another zone If Non-terminal NAPTRs are supported, then sort the NAPTRs in each zone separately |