Broadband  |  2026-06-19

New Etherstack MCX UE Middleware Solution Enables Seamless MCPTT, MCData, and MCVideo Support Across LTE/5G Networks

Source: The Critical Communications Review | Gert Jan Wolf editor

New EMU client engine brings unified push-to-talk, data, and video capabilities to public safety agencies, business and industry.

Etherstack, provider of mission-critical communications solutions, today announced the launch of their Etherstack MCX-UE (EMU) client engine, a 3GPP-Compliant Mission Critical Services (MCX) User Equipment (UE) middleware solution designed to bring standards-based push-to-talk, data, and video capabilities to government, defence and business & industry market segments. 

EMU implements the 3GPP MCX framework endpoints — including Mission Critical Push-to-Talk (MCPTT), Mission Critical Data (MCData) and Mission Critical Video (MCVideo) — enabling solution providers to develop new MCX compliant products for first responders, defence and critical infrastructure applications.

Etherstack has 30 years of industry experience licensing core technologies for edge and network solutions to the mission critical communications industry, including device air interface protocol stacks (waveforms), high availability softswitching solutions and application middleware for control room, switch and gateway vendors.

Key Features of the Etherstack MCX UE client solution:

  • 3GPP compliant (see table below)
  • C/C++ based SDK
  • Desktop simulator with reference UI
  • Relevant platform abstractions
  • Low memory, power and MIPS footprints
  • Scalable from RTOS to full OS deployment

 

 "The introduction today of the Etherstack MCX UE middleware solution significantly reduces time to market for MCX UE developers and at meaningly lower cost than proprietary in-house developments. The new software product will provide 3rd party control room and device vendors a straight line, clear path towards 3GPP MCX support and ultimately GCF certification through Etherstack’s commitment to open standards compliance” 

David Deacon, CEO, Etherstack

 

Scherm­afbeelding 2026-06-19 om 12.59.23

 

Etherstack is the leading supplier of 3GPP MCX IWF (Interworking Function), and is the key supplier for this technology to AT&T FirstNet (APCO P25 market) and UK Home Office’s ESN (TETRA market).