Candidate shall support the current team in the area of: - assessment of use cases and requirements for terminals aspects: analysis, completion - structuring of requirements into suitable work packages and derive effort estimation of work packages Genaue Aufgabenbeschreibung DTAG recently launched JOYN based on spec version 1.2.2. In order to deliver relevant feature enhancements the successor release based on JOYN BlackBird spec needs to be prepared in terms of analysis of use cases and requirements from a mobile terminal's perspective Anforderungen: Mobile Business +++ Telecommunication +++ Delivery + native terminal implementations, mainly based on Android OS and its APIs SIP, http(s), DNS, DHCP (s)RTP, ...