Hand placing a wooden block to symbolize reliable fallback communication in critical situations

K-FUNK – The Modular Platform for Fallback Communication

K-FUNK is a modular system developed by abel&käufl Mobilfunkhandels GmbH together with manufacturers and partners. Its purpose is to reliably maintain communication capabilities in critical situations — as a dedicated complement to existing operational and mission-critical communication infrastructures.

Thanks to its modular architecture, components can be precisely adapted to specific roles, operational tasks and deployment scenarios, enabling customized concepts for a wide variety of requirements.
The focus is on ensuring operational continuity — from command and reachability to data transmission, alerting and the integration of existing communication infrastructures. Existing systems are not replaced, but strategically complemented and seamlessly integrated.
Particular emphasis is placed on essential core functionalities that ensure stable operations and reliable communication at all times.

Overview of the K-FUNK communication architecture with MCX, SatPTT, SatVoIP, StarlinkPriority, Gateway, Alert, SatPBX and LMR

Modular by Design. Tailored in Implementation.

Fallback communication is not achieved through a single solution, but through the strategic interaction of different technologies and systems. This creates an individual communication architecture tailored to the organization, operational requirements and specific scenarios.

The path to the right solution begins with a structured evaluation of operational requirements. Various criteria are considered, ranging from communication types, mobility and user groups to availability and cost-efficiency.
Based on these requirements, a customized concept is developed that is precisely tailored to the respective organization and operational scenario.

The result is a cost-efficient and effective solution aligned with real operational requirements and designed to perform reliably when it matters most.

Key Benefits of K-FUNK

K-FUNK SatPTT

Reliable Group Communication – Independent of Terrestrial Networks and Infrastructure

K-FUNK SatPTT enables secure and direct satellite-based group communication — exactly when conventional communication channels are no longer available. The solution was specifically designed for organizations that need to maintain operational capability at all times, even under critical conditions.

By leveraging a global satellite infrastructure, communication remains operational independently of cellular and IT networks. This ensures that emergency response personnel, teams and organizations remain reliably connected at all times — regardless of location.

K-FUNK SatPTT module for satellite-based group communication

Reliable Group Communication at All Times

With K-FUNK SatPTT, teams communicate quickly, directly and instantly at the push of a button. The solution provides an independent fallback communication layer and supports command capability, reachability and rapid situational coordination.
At the same time, it enables reliable cross-organizational communication between emergency response personnel, operational teams and command structures.

Whether during operations, in remote regions or in the event of failures affecting existing networks, connectivity remains available and ensures clear, uninterrupted communication between all involved parties at all times.

K-FUNK SatPBX

Satellite-Based Telephony for Buildings and Command Infrastructures

K-FUNK SatPBX provides an independent fallback communication layer for voice communication in buildings, command structures and critical infrastructures. Even in the event of failures affecting existing networks, communication workstations remain reachable and fully operational at all times.

The solution operates independently of existing telephone systems, cellular networks and public data infrastructures. Existing network cabling can continue to be utilized, while multiple workstations can be connected flexibly.
This enables structured and reliable communication solutions for crisis management teams, control centers, authorities and critical infrastructures.

Structured Reachability for Critical Operational Situations

The focus lies on ensuring the reachability of critical roles, enabling cross-site communication and providing a stable fallback communication layer for voice communication. K-FUNK SatPBX enables structured communication pathways within crisis management teams, control centers and command structures.

By leveraging existing building cabling infrastructures, multiple communication workstations can be connected efficiently and expanded flexibly whenever required. The module can be deployed either as a standalone solution or as an integrated part of the K-FUNK communication architecture.

K-FUNK SatPTT für satellitengestützte Gruppenkommunikation

K-FUNK SatVoIP

Voice Communication via Satellite-Based Networks

K-FUNK SatVoIP enables IP-based telephony via satellite-based data connections, independent of local communication infrastructures. This ensures that locations, mobile workstations and command structures remain reachable and fully operational even in the event of network failures or outages.

The solution supports cross-site communication, mobile workstations and distributed communication infrastructures. Thanks to shared data connections and an integrated cloud-based telephone system, SatVoIP is particularly suited for authorities, administrative organizations, corporate locations and mobile command structures.

Satellitengestützte Gruppenkommunikation mit K-FUNK SatPTT

Integrated Telephony and Internet Access

The integrated cloud-based telephone system enables flexible call structures and shared communication channels across multiple locations. In addition to voice communication, applications, situational data and internet connectivity can be provided simultaneously.
This allows extensions, phone numbers and mobile workstations to be deployed rapidly and operated flexibly — including for temporary operational scenarios.

The combined use of telephony and data connectivity enables cost-efficient and flexibly scalable communication solutions for fallback and transitional operational scenarios.

K-FUNK Gateway

Integrating Existing Infrastructures into K-FUNK

K-FUNK Gateway enables the seamless integration of existing solutions into the K-FUNK communication architecture.

Existing radio networks, control centers and communication workstations can thus be extended with additional fallback communication layers without requiring the complete replacement of existing infrastructures.

K-FUNK Gateway zur Integration bestehender Kommunikationssysteme

Integrating Existing Infrastructures into K-FUNK

K-FUNK Gateway enables the seamless integration of existing infrastructures into a cross-system fallback communication architecture. This ensures that different organizations, locations and communication channels remain connected even in critical operational situations and can exchange information reliably at all times.

The focus is on leveraging existing infrastructures, enabling cross-organizational communication and strategically extending existing systems with additional communication channels and fallback communication layers.

K-FUNK MCX

Broadband-Based Group Communication for Diverse Operational Scenarios

K-FUNK MCX combines professional group communication with the capabilities of modern broadband networks. The solution enables flexible voice and data communication via cellular networks, Wi-Fi and cross-site broadband connections — without requiring a dedicated radio infrastructure.

Fast Group Communication for Operational Situations

Through the flexible use of various network infrastructures, K-FUNK MCX can be tailored to different operational requirements and deployment environments. This creates flexible communication solutions for operational, business continuity and fallback scenarios while ensuring reliable cross-organizational collaboration.

The focus lies on flexible group communication, voice and data transmission, and the efficient use of existing infrastructures. The module is suitable both as an extension to existing communication systems and as an additional fallback layer in the event of limited primary communication availability.

K-FUNK MCX für breitbandgestützte Gruppenkommunikation

K-FUNK LMR

Independent Radio Networks for Mission-Critical Communication

K-FUNK LMR stands for dedicated radio networks with high availability, direct group communication and fully controllable infrastructure. The solution enables reliable voice communication for operational and tactical requirements — independent of public cellular networks.

Depending on the operational requirements and deployment scenario, different radio technologies such as TETRA, DMR and Dimetra Connect can be deployed.

K-FUNK LMR für unabhängige Funknetze und direkte Gruppenkommunikation

Reliable Communication Even Under Critical Conditions

The independent network architecture makes K-FUNK LMR highly resilient against disruptions and overloads affecting public networks. This makes the solution ideally suited for operational and mission-critical communication, while also providing a reliable fallback communication layer.

The Focus Is On:

  • Direct Group Communication
  • High Availability
  • Independent Infrastructure
  • Rugged Devices
  • Vehicle and Control Center Integration
  • ATEX-Capable Solutions

K-FUNK Alert

Alerting and Information Distribution for Critical Operational Situations
Alternativen:

K-FUNK Alert extends existing alerting and information systems with additional communication channels for critical operational situations.

The solution ensures rapid reachability of defined individuals, groups and organizations, even during overloads or disruptions affecting public communication networks.

Distribute Information Reliably and in a Targeted Manner

K-FUNK Alert Provides Additional Communication Channels for:

  • Alerting
  • Information Distribution
  • Situational Communication
  • Cross-Organizational Communication

The focus lies on rapid information distribution, defined alerting structures and an additional fallback communication layer for critical situations. The solution is particularly suited for public safety organizations (BOS), crisis management teams, critical infrastructures, as well as authorities and enterprises.

K-FUNK Alert für Alarmierung und Informationsverteilung