Release of MCOP source code for MCPTT apps and SDK

Monday, 02 July, 2018

Release of MCOP source code for MCPTT apps and SDK

The first versions of the Mission Critical Push to Talk (MCPTT) Open Source software development kit (SDK) and sample MCPTT app have been released by the Mission Critical Open Platform (MCOP) project, during the second ETSI MCPTT Plugtests last week in Texas.

The entire source code is available to download from the MCOP repository at

The MCOP SDK and sample MCPTT app facilitate the development of mission-critical services by handling most of the complexity of MCPTT application development.

The SDK implements all the protocols and signalling specified in 3GPP Release 13/14 MCPTT standards while providing neat APIs for both APP developers and UE vendors, the so-called MCOP Unified Open API- MUOAPI, and Integration API, publicly available at

The MCOP project is designed to remove the entry barriers of multiple technologies and proprietary platforms. It ensures interoperability and provides a catalyst for more players to enter the MCPTT market by making the business case more attractive.

All MCOP components are fully compliant with 3GPP standards.

Released with the MCOP SDK, the sample MCPTT app serves as a simple proof of concept of what can be achieved in a few lines of code using the MCOP SDK.

Both the app and the SDK can be remotely tested in a full 3GPP MCPTT system using the MCOP Testing platform at

Additionally, a SIM-authentication emulation plug-in following the MCOP architecture is provided for those developers that have no access to an MCOP Integration API supporting device.

“We are really excited to release this version of the MCOP SDK to the community,” said Fidel Liberal, MCOP project coordinator.

“It will allow us to validate MCOP architecture and check it is proven to be useful for different stakeholders including user equipment vendors, apps and SDK developers, researchers and new mission-critical communications practitioners.”

The MCOP project, funded by the US Department of Commerce’s National Institute of Standards and Technology (NIST), aims to meet the challenges of the emerging and complex MCPTT ecosystem.

The project, set to complete by mid-2019, will define, develop and validate an MCPTT client open platform that identifies neat open interfaces between the different technologies and reduce the integration efforts as well as a live and an online testbed for the applications.

MCOP is led by the University of the Basque Country with partners Bittium, Expway and TCCA, supported by Nemergent.

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