DIN ETS 300392-10-15:1997-09

This document defines the stage 1 specifications of the Supplementary Service Transfer to Control (SS-TC) for the Trans-European Trunked Radio as provided by European operators. It specifies the service description of the supplemtary services and the procedure to be expected with successful and unsuccessful outcomes. In addition the ETS specifies the interactions with other TETRA supplementary services and interworking considerations. The SS-TC enables the call owner during the ongoing multipoint call to transfer the ownership of the multipoint call to another TETRA user within the ongoing multipoint call.