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IFAX Service of ENUM. Objective Registering IFAX service of ENUM with IANA Functional Specification of IFAX service is different from email service, PSTN-fax service and T.38 fax service. Functional Specification. DSN query with the target system’s telephone number
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IFAX Service of ENUM • Objective • Registering IFAX service of ENUM with IANA • Functional Specification of IFAX service is different from email service, PSTN-fax service and T.38 fax service.
Functional Specification • DSN query • with the target system’s telephone number • Returned NAPTR record • specifies an email address that is to be used for reaching the target system • The email address is then used • in accordance with “Simple Mode” RFC2305, “Extended Mode” RFC2532 or FFPIM.
Definition of NAPTR record • Service Name “ifax” • Protocol smtp • URI scheme “mailto” • Intended Usage COMMON • Example $ORIGIN 4.3.2.1.6.7.9.8.6.4 e164.arpa IN NAPTR 10 10 “u” “E2U+ifax:smtp” “!^.*$!mailto:toyo@ifax.net!”