Domain Policy DDDS basics The domain is the key to the destination policy Use the DNS as rule store No special translation rules necessary Infrastructure is in place Example: example.com. IN NAPTR 10 50 "U" "D2P+SIP:fed" "!^.*$!http://sipxconnect.example.org/!" . “Regarding SIP, example.com is a member of the federation identified by this URI.” Non-terminal NAPTR for customer domains referring to provider domains Protocol agnostic SIP is just a special case |