To: IANA@isi.edu Subject: Registration of new values for the GSTN address qualif-type1 element "ISUB" qualif-type1 "keyword" name: ISUB qualif-type1 "value" ABNF definition: isub-addr = 1*( DIGIT ) isub-addr =/ 1*( DIGIT / written-sep ) written-sep = ( "-" / "." ) Description of Use: "ISUB" is used to specify the optional ISDN sub-address elements used in ISDN service to reach specific objects on the ISDN service. It can eventually embed written separator elemens for the only scope to enhance human readability. See for further details. Use Restriction: none. Security Considerations: See the Security Consideration section of . Person & email address to contact for further information: Claudio Allocchio INFN-GARR c/o Sincrotrone Trieste SS 14 Km 163.5 Basovizza I 34012 Trieste Italy RFC822: Claudio.Allocchio@elettra.trieste.it X.400: C=it;A=garr;P=Trieste;O=Elettra; S=Allocchio;G=Claudio; Phone: +39 040 3758523 Fax: +39 040 3758565