T.Quasar
The Core of TASSTA’s MCX Ecosystem

T.Quasar is the backbone of the TASSTA MCX ecosystem, delivering a fully 3GPP-compliant Mission-Critical Services (MCX) solution. Engineered for public safety, transportation, utilities, and manufacturing, it ensures uncompromising availability, security, and interoperability across 4G, 5G, and future network technologies.

With end-to-end encryption, built-in load balancing, multi-node redundancy, and an industry-leading 99.999% high availability, T.Quasar empowers instant, secure, and scalable mission-critical communications across diverse operational environments.

Core Features

Mission-Critical Communications

MCPTT (Mission-Critical Push-to-Talk)

MCVideo (Real-Time Video Streaming)

MCData (Secure Data Transmission & File Sharing)

Advanced Communication Capabilities

Group and one-to-one calls

Emergency and priority calls

Full-duplex calls & broadcasts

Video calls and live video streaming

Messaging and file exchange

Ambient listening & remote viewing

Ad-Hoc group creation & dynamic teams

Interoperability & Integration

Integration with 4G/5G networks

PCRF integration

TETRA/DMR interworking

VoIP call metrics (ASR, ACD, CPS)

Functional Alias support

Security & Reliability

End-to-End Encryption for voice, video and messaging

Traffic prioritization

Service redundancy and load balancing

High availability and real-time

Automated backup and recovery

Operational Efficiency

Full API support – manage the system programmatically and seamlessly integrate with third-party solutions

Scalable to environments of any size and demand

Audit trails – Event tracking and in-depth system statistics

Active-active clustering – all hosts in the cluster actively handle user requests, no hardware duplication needed

Compliance

Full compliance with 3GPP releases 13 to 18

Lone worker protection compliant with DGUV 112-139 standard

Passed every ETSI MCX Plugtests

Special Capabilities

Lone Worker Protection

Guard Tour

Centralized client updates

Bulk user management

Delayed message delivery and limited support for offline operations

What’s New in T.Quasar?

Added new media encoding formats
Data center affinity
Custom transport keys (TrK) for the KMS server
Functional alias improvements
Ad hoc group communication
Call detail records export to SFTP
Use management APIs

T.Quasar is engineered to evolve with future mission-critical demands while maintaining unmatched reliability and security.

MCPTT Plugtest

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