Global Tech Communication | Emergency Communication & Wireless Transmission Systems

About Global Tech Communication

Founded in 2002, Guangdong Global Telecommunication Technology Co., Ltd. is a leading manufacturer of emergency communication equipment, wireless transmission systems, and industrial networking solutions.

Product Positioning & Expertise

We specialize in high-reliability communication systems for defense, public safety, oil & gas, railways, and critical infrastructure. Our products are engineered for extreme environments and mission-critical operations.

20+ Years of Industry Experience
ISO-Certified Manufacturing
Global Distribution Network
R&D Focused Innovation

Our Product Lines

High-performance communication solutions for industrial, defense, and telecom applications.

Asterisk VoIP Gateway

H.248/SIP/MGCP 8FXS/FXO ATA/IAD

• SIP/H.248/MGCP Protocol Support
• 8 FXS + 8 FXO Ports
• Industrial Grade Design
• Wide Temperature Range

Industrial Serial Server

RS232/422/485 to Ethernet

• 8-Port Serial to Ethernet
• SCADA & Industrial Automation
• DIN-Rail Mountable
• -40°C to +85°C Operation

CRPA Anti-Jamming Antenna

GAS100 GNSS Navigation Protection

• 4-Array CRPA Design
• 225g Lightweight
• FPV Platform Compatible
• Military-Grade Jamming Defense

Telemetry Mesh Datalink

TDOA Position System (50-300km)

• MESH & Point-to-Multipoint
• 50/100/200/300km Range
• TDOA Positioning Support
• High Mobility Operation

Fiberhome GPON Solution

4GE + VoIP + 2.4G/5G WiFi

• GPON/EPON Compatible
• Dual-Band WiFi 6
• Integrated VoIP
• FTTX Deployment Ready

Serial to Ethernet Converter

Industrial Edition VU1

• RS232/422/485 to Ethernet
• Industrial Temperature Range
• DIN-Rail or Wall Mount

Multi-Service IP-PBX

NGN/IMS Chassis Platform

• Scalable Chassis Design
• Supports 2000+ Users
• IMS & NGN Ready
• Redundant Power Supply

SME/SoHo IP PBX

GT5200SV2 - 2000 Users

• All-in-One VoIP Solution
• 2000 User Capacity
• Web-Based Management
• SIP Trunk & DID Support

Digital Radio GTRV-F6E-VB

460MHz, RS232, Vehicle Mount

• 8km+ Range (Mountain)
• RS232 Data Interface
• All-in-One Send/Receive
• Industrial PC Integration

Full-Duplex Wireless Headset

AMF8 Mesh Communication

• Mesh Network Topology
• 400m+ Open Space Range
• 16 ENC Channels
• No Base Station Required

EOD Multi-Sensor Camera

Eagle102Y - 20km Laser Range

• 20km Laser Range Finder
• 16.4km Human Detection
• 13.5km Vehicle Recognition
• Auto Tracking ≥13km

Anti-UAV Defense System

3D Radar + GPS Spoofing + Jamming

• >5km Detection & Interference
• 3D Active Radar (Azimuth, Altitude)
• Full Frequency Jamming
• GPS Spoofing Capability

View All 130+ Products

Why Choose Global Tech?

Military Grade

Ruggedized designs tested for extreme temperatures, vibration, and EMI environments.

Industrial Reliability

20+ years of experience in industrial communication systems with proven field performance.

Global Support

Multilingual support and distribution network across Asia, Europe, Middle East, and Americas.

Innovation Focused

Continuous R&D investment in mesh networking, anti-jamming, and secure communication tech.

Frequently Asked Questions

What is the warranty period for your products?

Most of our industrial and defense products come with a standard 3-year warranty. Some consumer-grade products may have a 1-year warranty. Extended warranty options are available upon request.

Do you offer OEM/ODM services?

Yes, we provide comprehensive OEM and ODM services. Our engineering team can customize hardware, firmware, and software to meet your specific requirements, including branding, interface modifications, and protocol integration.

Can your mesh systems operate without infrastructure?

Absolutely. Our mesh communication systems are designed for true peer-to-peer operation with no base station required. Units form self-healing networks automatically, ideal for emergency response, military operations, and remote areas.

What certifications do your products have?

Our products comply with international standards including CE, FCC, RoHS, and ISO9001. Defense products meet relevant military specifications. We can provide certification documentation for specific models upon request.

How can I get technical support?

Technical support is available through our global network. While specific contact details are managed through our official channels, you can access support by visiting our official website and navigating to the support section for your region.

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Emergency Communication & Wireless Transmission Systems