Hannover, Germany — 30.01.2026 — TASSTA, a global provider of mission-critical communication software, announces the publication of its featured article in APAC CIOOutlook, titled “Redefining Mission-Critical Communication for a Safer, Smarter World.” The article highlights TASSTA’s vision, technology, and real-world impact in enabling secure, reliable, and future-ready communications for mission-critical operations worldwide.

Read the full article here:
https://wireless.apacciooutlook.com/vp/TASSTA/tassta:_redefining_mission-critical_communication_for_a_safer,_smarter_world/

The feature explores how TASSTA addresses today’s communication challenges by delivering a software-defined platform that combines push-to-talk (PTT), real-time voice and video, location tracking, emergency management, and task coordination in a single, unified solution. Designed for environments where reliability is non-negotiable, TASSTA supports organizations operating in public safety, critical infrastructure, transportation, industry, and enterprise sectors.

The article highlights TASSTA’s seamless integration of traditional radio systems with advanced digital capabilities, supported by continuous development that adapts to evolving operational and industry demands. This approach allows organizations to modernize their communications while preserving existing investments and ensuring full interoperability across devices, networks, and technologies.

APAC CIOOutlook also emphasizes TASSTA’s focus on resilience, security, and flexibility. TASSTA solutions can be deployed on-premise or in hybrid environments, offering customers full control over data sovereignty and system availability. Built to support broadband networks, private LTE/5G, and radio interoperability, TASSTA enables a smooth transition toward next-generation mission-critical communications.

By prioritizing customization, freedom of choice, and knowledge sharing, TASSTA continues to help organizations enhance situational awareness, improve response times, and increase operational safety — without compromising reliability.

Interested to learn more, contact us at:
hello@tassta.com

In October 2025, TASSTA participated in the 5th ETSI FRMCS Plugtests hosted by UIC in Paris. This event is part of the ETSI MCX Plugtests Programme and is designed to validate real interoperability between mission-critical (MCX) solutions and multi-vendor 5G/IMS core networks.

FRMa Railway Mobile Communication System) is the railway industry’s next-generation communication system, intended to replace GSM-R with broadband, secure and interoperable services.

The Plugtests series is ETSI’s way to ensure that different vendors’ implementations actually work together in practice — not just on paper.

– confirm interoperability between vendors
– validate understanding of 3GPP/ETSI standards
– help implementers find and resolve issues early

The 5th edition brought together a large multi-vendor lab with more than 170 participants, simulating an environment close to real railway deployments.

We brought:
– TASSTA T.Quasar MCX Application Server
– our MCX client(s)

This allowed us to integrate and test against multiple 5G cores from different vendors in a shared interoperability lab.

This is important because in live railway networks, MCX services must operate reliably across whichever 5G core an operator chooses. Demonstrating multi-vendor compatibility is therefore a key milestone for market readiness.

All test cases were taken from ETSI’s MCX Plugtests scenario specification ETSI TS 103 564.

What we tested
– Creating an ad-hoc MCPTT group call on demand, without security
[CONNMCPTT/ONN/GROUP/ADHOC/ONDEM/NOSEC/NFC/02] – Releasing that ad-hoc group call
[CONNMCPTT/ONN/GROUP/ADHOC/ONDEM/NOSEC/NFC/03]

In simple terms
We verified that a user can start a spontaneous push-to-talk group — for example, “all staff in this station right now” — and later end it cleanly. The group is created dynamically by the MCX system and correctly transported through the 5G core.

MCPTT is not like a normal voice call — only one person (or a controlled set of people) speaks at a time. The mechanism that manages this is Floor Control (FC).

Basic FC
– Effect of priorities [FC/BASIC/02]

Advanced FC
– Revoking the floor when a timer expires (T2) [FC/ADV/01]
– Queueing requests after release [FC/ADV/02]
– Queueing requests after revoke [FC/ADV/03]

Awareness and special cases
– Functional Alias (FA) display during FC [FC/FA/BASIC/01]
FA allows users to speak under a role (e.g., “Train Driver 17”) instead of a personal name.
– Multi-talker basic operation [FC/MT/BASIC/01]
– Location sharing during FC [FC/LOC/BASIC/01]
– Location sharing during multi-talker FC [FC/MT/LOC/BASIC/01]

In simple terms
We validated that:
– the system correctly assigns the “right to speak”
– priority users override lower-priority requests
– the floor is revoked automatically if held too long
– queued talkers get their turn in order
– operators can immediately see who is speaking (via alias/role) and, when relevant, where they are — even in multi-talker situations

These are essential railway features, enabling dispatchers and field teams to maintain clear, disciplined voice communication in high-stress situations.

Mission-critical voice requires guaranteed quality (latency, priority, stability). In 5G, this is achieved via dedicated QoS flows.

We tested:
– Creating a unicast 5GS QoS flow via Rx [PCC/5GSQOSFLOWSETUP/Rx/02]
– Creating a unicast 5GS QoS flow via N5 [PCC/5GSQOSFLOWSETUP/N5/02]
– Updating a unicast 5GS QoS flow via Rx [PCC/5GSQOSFLOWUPDATE/Rx/02]

In simple terms

We checked that the TASSTA MCX server can request mission-critical treatment from the 5G core — using standard 3GPP policy control interfaces — for specific users’ media streams.
This allows the network to prioritize MCPTT traffic over normal data traffic, which is a core requirement for FRMCS deployment.

Even without sharing confidential results, the value is clear:
– Multi-vendor realism — testing our stack against diverse 5G cores and MCX implementations in one environment
– Standards confirmation — verifying our implementation aligns with ETSI/3GPP intent
– Early issue discovery — solving interoperability problems in the lab, before they appear in real railway networks

FRMCS will only succeed if:
1. vendors interoperate,
2. mission-critical QoS is correctly enforced in 5G cores,
3. railway-specific MCX behavior (roles, priorities, multi-talker logic, location) operates reliably.

This Plugtests edition showed the ecosystem moving from “specification compliance” to field-ready interoperability.

Big thanks to ETSI Plugtests, UIC, and all participating vendors and operators for a highly collaborative environment.
TASSTA is proud to contribute to the maturity of FRMCS and MCX interoperability, and we will continue this work in upcoming ETSI/3GPP programmes.

Dubai, UAE — 21st November 2025

Nedaa – Professional Communication Corporation, along with its subsidiary ESHARAH ETISALAT SECURITY SOLUTION, Dubai’s exclusive provider of secure mission-critical communications, has announced an exciting strategic collaboration with TASSTA GmbH, a global leader in next-generation mission-critical communication (MCX) technology.

This partnership is set to redefine secure communications for government agencies, first responders, and public safety organizations across the emirate. By combining TASSTA’s cutting-edge MCPTT and advanced dispatching solutions with Nedaa’s state-of-the-art TETRA and LTE/5G network infrastructure, the collaboration delivers faster response times, seamless inter-agency coordination, and real-time situational awareness—critical for the fast-paced demands of Dubai’s smart-city initiatives.

“Nedaa and its subsidiary ESHARAH are committed to pushing the boundaries of secure, mission-critical communications,” said a Nedaa spokesperson. “Our collaboration with TASSTA ensures that government and public safety agencies have the tools they need to act quickly, decisively, and confidently.”

“TASSTA is proud to partner with Nedaa and its subsidiary ESHARAH to bring reliable, scalable, and interoperable solutions to Dubai,” added a TASSTA representative. “Together, we’re enabling a communication ecosystem that’s ready for today—and tomorrow.”

The joint solution includes secure MCPTT deployment, cross-platform interoperability, advanced dispatching, and enhanced incident management tools—delivering critical information when it matters most, every time. This partnership cements Dubai’s position as a leader in technological innovation, operational readiness, and smart-city excellence.

PMRExpo serves as the central meeting point for professionals shaping the future of mission- and business-critical communication. Each year, the event brings together experts, providers, and users from across industries – from public safety and critical infrastructure to transport and utilities.

TASSTA will be on site to showcase its latest developments in mission-critical Push-to-Talk, Push-to-Video, and Push-to-Data solutions, all designed to ensure reliable, secure, and efficient communication across teams and networks.

Meet the TASSTA Team in Cologne Visitors are invited to stop by Stand E48 to meet the TASSTA team, discover new features, and discuss how TASSTA’s solutions are transforming secure communications around the world.

See you at PMRExpo 2025 in Cologne!

We’re thrilled to announce that T.Star, our cutting-edge 3GPP-compliant Mission-Critical Communication (MCX) client, is now available on the iOS App Store!

For years, the industry has needed a robust, fully compliant mission-critical app for iOS, and we’ve delivered. T.Star is engineered for professionals in highly regulated and strategic environments who demand the utmost in secure, reliable, real-time communication.

T.Star is optimized for LTE and 5G networks, providing the unwavering performance vital for first responders, public safety, emergency services, and critical infrastructure operators.

“This is what the industry has been waiting for, and it will fundamentally redefine how critical operations stay connected,” says Kaveh Hosseinzadeh, General Manager at GMC TASSTA GmbH.

Download T.Star today and experience the future of secure, mission-critical communication on your iPhone:

In a recent interview with SafetyDetectives, Kaveh Hosseinzadeh, General Manager of TASSTA, shared valuable insights into the company’s approach to mission-critical communication, cybersecurity, and digital transformation.

TASSTA is at the forefront of transforming how public safety and enterprise teams communicate. What began as a modern alternative to traditional radio systems has evolved into a full-featured platform supporting:

Kaveh explains that TASSTA’s ecosystem is built with flexibility and security at its core — designed for high-demand environments such as emergency services, transportation, utilities, and private security.

Security isn’t an add-on — it’s a foundation. The TASSTA system offers:

Kaveh emphasizes that protecting sensitive communication data is non-negotiable, especially when working with government and critical infrastructure clients.

One of TASSTA’s key differentiators is its interoperability with legacy systems like TETRA, DMR, and P25. Organizations can modernize their communication stack without replacing existing radios, enabling a smoother and more cost-effective digital transition.

Kaveh shares TASSTA’s vision for the future, which includes:

TASSTA’s goal is to offer communication tools that are secure, scalable, and adaptable — ready to support any team that depends on reliable coordination and fast decision-making.