MCPTT- Mission Critical


The MCX TASSTA solution is applicable primarily to Mission Critical Services relying on LTE availability. Certain Mission Critical Service functionality sets such as dispatch and administrative functionality can also be supported over non-3GPP networks. The solution can be used for public safety applications and also for general commercial applications in businesses such as utility companies and railways.


MCPTT - Mission Critical Push-to-Talk

A Push-to-Talk service provides an arbitrated method by which two or more users engage in communication. Users may request permission to transmit (traditionally, by pressing a dedicated button).

The MCPTT service is intended to support communication between several users (a group call), where each user has the ability to receive the permission to talk in an arbitrated manner. However, the MCPTT service also supports private calls between pairs of users.

  • Private Call 1-1
  • First to answer Call 1-1 (many)
  • Ambience Listening Call
  • Remote Ambience Listening
  • Group Call 1- many
  • Chat Call 1 – many
  • Broadcast Call 1- many
  • Temporary Groups
  • Network On/Off
  • Priority Modes

MCVIDEO - Mission Critical VIDEO

The term Mission Critical refers to meeting the needs of agencies providing public safety services such as police, fire brigades and ambulance services. Those needs include high reachability, availability and reliability of the service, low latency, real-time operating capabilities, highly secured operations, private and group communications, handling of emergencies and ability to provide prioritization.

  • Video Streaming
  • Surveillance cameras
  • Unmanned aerial vehicles

MCDATA - Mission Critical DATA

MCData is a service for Mission Critical Data Operations. In addition to voice services, today’s Mission Critical Users have been increasing their use of data services, including low throughput services on legacy networks and data services on commercial networks.

This need will continue to grow with the creation of new multimedia services. The MCData service needs to provide a means to manage all data connections by Mission Critical Users in the field and provide relevant resources to the ones who need them.

  • Short Instant Messaging (private / group)
  • File Sharing
  • Location Sharing





The goal of the MCX Plugtests event was to validate the interoperability of a variety of implementations using different scenarios based on 3GPP Mission Critical Services.