Section: 19.4.2.9A.5 Replacement field used in DNS-based Discovery of regulatory requirements for emergency services
Content: The requirements specified in clause 19.4.2.9.5 for the Replacement field used in DNS-based Discovery of regulatory requirements shall apply with the following modification. The replacement field shall take the form of an Operator Identifier based Emergency ePDG FQDN as specified in clause 19.4.2.9A.2. As an example, the NAPTR records associated to the Visited Country FQDN for MCC 345, and for MNC 012, 013 and 014, are provisioned in the DNS as: sos.epdg.epc.mcc345.visited-country.pub.3gppnetwork.org ; IN NAPTR order pref. flag service regexp replacement IN NAPTR 100 999 "" "" sos.epdg.epc.mnc012.mcc345.pub.3gppnetwork.org IN NAPTR 100 999 "" "" sos.epdg.epc.mnc013.mcc345.pub.3gppnetwork.org IN NAPTR 100 999 "" "" sos.epdg.epc.mnc014.mcc345.pub.3gppnetwork.org