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Shenzhen, China — In the wake of severe flooding triggered by Typhoon Maysak, Guangxi Province has faced significant challenges, including reservoir safety risks, power outages, road disruptions, and public network failures. With several communities isolated due to damaged infrastructure and inaccessible roads, maintaining reliable emergency communications has become a critical priority for search, rescue, and disaster relief operations.
Recognizing that “communication is a lifeline in disaster response,” Caltta Technologies rapidly activated its emergency response mechanism, dispatching technical specialists and emergency communication equipment to the affected areas. Working closely with the Guangxi Emergency Management Department and frontline rescue teams, Caltta provided mission-critical communication support to restore connectivity, strengthen command and dispatch capabilities, and ensure efficient coordination during flood control and rescue operations.
Rapid Deployment to Restore Emergency Communication Connectivity
Following continuous heavy rainfall, conventional public communication networks in some disaster-stricken areas were damaged, while blocked roads and challenging terrain created additional obstacles for emergency equipment deployment.
Upon arriving at the disaster zone, Caltta's emergency communication team immediately conducted on-site assessments and developed a tailored communication deployment plan based on actual environmental conditions. From equipment transportation and site surveys to network setup, system activation, and terminal configuration, every stage was executed efficiently to ensure continuous and stable communication services for frontline rescue operations.
By overcoming infrastructure limitations and restoring connectivity in isolated areas, Caltta helped establish a reliable communication bridge between rescue teams, field commanders, and emergency management authorities.
Multi-Layer Emergency Communication Network Supports Search and Rescue
To address complex disaster conditions, including damaged public networks, blocked transportation routes, and communication blind spots, Caltta deployed a comprehensive emergency communication solution based on “fixed coverage + mobile extension + aerial communication enhancement.”
The solution included:
· DMR Integrated Trunking Base Station
Deployed as the core communication infrastructure, the system quickly established a stable digital trunking network to support frontline command, dispatch, and coordination.
· SmartLink600 Backpack Narrowband Ad-Hoc Repeater
Carried by rescue personnel into areas inaccessible by vehicles, the portable repeater extended communication coverage and maintained connectivity during field operations.
· SmartLink300 Airborne Narrowband Ad-Hoc Repeater
Leveraging drone-based deployment, aerial communication nodes were rapidly established to overcome terrain limitations and fill critical communication gaps in blocked or remote areas.
· GH960S Dual-Mode Digital Trunking Radios
Equipped frontline responders with reliable voice communication capabilities, enabling uninterrupted coordination, emergency instructions, and team collaboration.


Together, these technologies created a resilient communication network covering command centers, rescue routes, and key affected locations, ensuring that emergency information could be transmitted quickly and accurately when it mattered most.
Interoperable Communications Improve Multi-Agency Rescue Coordination
During the emergency response, Caltta's open and interoperable Ad-Hoc communication architecture enabled multiple brands of digital trunking radios to connect seamlessly within a unified communication network.
This capability allowed different rescue organizations and emergency teams to achieve cross-team and cross-device interoperability, supporting unified command and improving overall disaster response efficiency.
In large-scale emergencies, where different agencies often operate with different communication systems, interoperability becomes a key factor in accelerating rescue coordination and improving operational effectiveness.

Mission-Critical Communications: A Vital Foundation for Disaster Resilience
Behind every successful search and rescue operation, reliable communication serves as the invisible connection between frontline responders and command centers.
During flood disasters, when traditional communication infrastructure is damaged or unavailable, dedicated emergency communication networks provide the critical link needed to deliver rescue instructions, coordinate resources, and protect lives.
As flood control and disaster relief efforts continue in Guangxi, Caltta's emergency communication support team remains deployed on the frontline, providing ongoing equipment operation, maintenance, and communication assurance to support rescue activities.
Through professional emergency communication capabilities, Caltta continues to empower public safety organizations and emergency responders with reliable, resilient, and mission-critical connectivity when it is needed most.
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