Gateway for interworking between MCPTT and TETRA

I. Project: Gateway allowing interworking between MCPTT and TETRA II. Scope: Allow interworking between MCPTT and TETRA (Thales) under ETSI standards, since ETSI defines the IWF for TETRA This Gateway shall allow the following services, in order of priority (highest first): 1) Group calls 2) Emergency calls 3) Broadcast calls 4) Individual calls 5) SDS (short text) III. Tools: a) We have a comprehensive description of the following MCPTT elements: • Call flows • Protocols • Usage scenarios b) We have C++ source code of a Tetra API (Windows) capable of managing a series of voice functions like PTT button events, call control events, etc. IV. Conditions: • The project shall be managed and executed only in English or in Spanish. • The voice shall never use analogic channels, only IP formats are to be used for voice. • The usage of multiple IW-GW instances may be required in order to reach 100+ groups. • Project milestones shall be defined and agreed, after each milestone completion its payment shall be issued. • One or more VPN connections may be established to allow a remote connection for simulation tests, field tests and final ATP in real life conditions. • All final source code shall be handed over and will belong to us after project completion. • Respect all interworking principles such as: ◦ The end user devices should not need to act any differently ◦ The impact on MC system servers should be minimized ◦ To an MC system, an IWF should look like another MC system that belongs to a different security domain V. Mandatory references: • 3GPP TS 29.379 (Interworking, MCPTT call control) • 3GPP TS 29.380 (Interworking, MCPTT media control) • 3GPP TS 33.180 (MC system security) • ETSI TR 103 565-1 (Study on interworking services) • ETSI TR 103 565-2 (Study on interworking applications) • ETSI TS 100 392-19-1 (Interworking protocol spec, draft)