Schiefner's job reponsibility in RIPE included the coordination of and led all activities related to the ENUM Tier 0 registry for e164.arpa.<ref>[http://isoc.nl/activ/2008-FutureOfPresence/speakers.htm Internet Society]</ref> In Deutsche Telekom he was responsible for the assessments of emerging technologies and markets - such as VoIP, FMC or NGN developments.<ref>[http://rnd.domainregistry.my/event/NICE07/speakers1.html National Innovation Conference & Exhibition Official Website]</ref> | Schiefner's job reponsibility in RIPE included the coordination of and led all activities related to the ENUM Tier 0 registry for e164.arpa.<ref>[http://isoc.nl/activ/2008-FutureOfPresence/speakers.htm Internet Society]</ref> In Deutsche Telekom he was responsible for the assessments of emerging technologies and markets - such as VoIP, FMC or NGN developments.<ref>[http://rnd.domainregistry.my/event/NICE07/speakers1.html National Innovation Conference & Exhibition Official Website]</ref> |