The first tests for the interoperability of the Mission Critical Push To Talk (MCPTT) took place from 19 to 23 June 2017 at the ETSI headquarters in Sophia Antipolis, France.

This Plugtest, supported by the European Commission, was the first to test the interoperability of MCPTT products and services.

Over 1000 tests have been conducted, with a success rate of 85%.

For this first Plugtest a test specification was developed for the 3GPP Release 13 MCPTT version, composed of 47 test cases.

Alea S.r.l^®, has participated as a MC server vendor and MC client vendor.