Thomas Hain is an experienced Network Design Engineer at Telefónica Germany, where since July 1998, responsibilities include serving as a senior core network and voice services design engineer and leading VoLTE technical initiatives. Expertise encompasses the design of mobile voice services, mobile core network planning, and the creation and negotiation of technical contracts. Previous roles involved significant contributions to CSFB design, mobile circuit-switched core migration, and network migration projects. Prior experience includes working as an IN Service Design Engineer at T-Mobile, focusing on the implementation and specification of IN services. Thomas Hain holds a Diplom Ingenieur degree in Telecommunications from the Technical University of Munich.
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