The system unites excellent performance, and is compatible with diversified digital/analog systems of different communication modes to help users upgrade and expand with ease. Characterized by integrated access, interconnectivity, and multilevel networking, this system brings full interconnectivity across modes/systems/departments/carriers for improved management efficiency and enriched management measures.
To tackle communication problems and satisfy the demands of different operating environments, BelFone has generated five DMR Trunking solutions, including:
- Simulcast Solution
- Multi-Site Trunking Solution
- Single-Site Trunking Solution
- Converged Communication Solution
- VHF/UHF Solution
- Large Trunking Solution
SYSTEM ADVANTAGE
Better Network Extensibility
BelFone EXT DMR Trunking system adopts a text-based SIP protocol that could guarantee separation of call control and bearer function and perform soft switch. Therefore, enable DMR MSC to interconnect with other communication networks and provide convenience for add-value service development.
Rich Dispatching Functions
The system can effectively combine short messages, status messages, packed data and other data services with voice dispatching to provide rich dispatching functions.
Longer Battery Life
The system incorporates TDMA technology to flexibly mobilize two channels interchangeably and lower battery consumption. Extending battery life by up to 40% compared with analog technology.

Higher Spectrum Efficiency
With TDMA two time-slot technology to divide 12.5kHz wideband carrier into two time-slots which enables a single carrier to support 2 lines call(≈two 6.25kHz channels)and then double the communication efficiency.

Mult-Layer Encryptions
With built-in multi-layer encryption technologies such as ARC4, AES256 and end-to-end encryption, software-based encryption and hardware-based encryption, ETX system can effectively ward off unwanted signals, and thus greatly increase system security and effciency.
Flexible Deployment
- Rack Mounted Structure
- Distributed Carrier Deployment
- BBU, RRU Separated Deployment
- Vehicular-Mounted Trunking Solution
High Reliability
To avoid damage caused by device loss, file corrupt, data loss, and other accidents, the system adopts a more flexible backup policy to improve database security and bring quicker, safer, and more comprehensive redundant backup.
- MSC Backup
- BSCU Backup
- Control Channel Backup
- Base Station Backup
- PMU Backup
- Single Site Fallback
Rich Application Services
Aside from quality voice, data, and dispatching services, the system supports rich supplementary services to satisfy different user demands. Also, the system can interconnect different systems by using the SIP protocol.
Voice Services
- Full Duplex Individual Call
- Emergency Call
- Broadcast Call
- Individual Call
- Group Call
- All Call
Data Services- Short Message
- Long Message
- Status Message
- Emergency Alarm
- Encrypted Communication
Dispatching Services- Ambience Listening
- Override/Interrupt
- GPS Subscription
- Dynamic Group
- Stun/Revive/Kill
- Group Patch
- GPS Polling
- Monitoring
Other Services- Remote Base Station Upgrading
- Sever-wide Recording
- PABX Voice Gateway
- Call Forwarding
- Local Recording
- Include Call
- PSTN
Networking Topology
SYSTEM COMPOSITION
BF-TR950 Trunking Station
BF-TR950 is a carrier level DMR Trunking base station designed with unit module, featured enhanced extensibility and rich functions. It supports failure fallback mode, inter-site call handling, whole site backup, and allows backup station to automatically take over to deliver enhanced reliability. BF-TR950 incorporates a perfect backup mechanism for key components of base station-controller, carrier, power supply, etc. Besides, it can also allow an online main module change to sustain long time operation and safeguarding smooth communication.
- Carriers Failure Isolation
- Blade Mounted Structure
- Key Components Backup
- Maximum 8 Carrier Per Site
- Base Station Failure Fallback
- Intelligent Fan Speed and Temperature Control
BF-TR951 Trunking Base Station
BF-TR951 is designed with independent carrier and power supply to enhance reliability. With comprehensive functions to support failure fallback and inter-site call handling. Compliance with military level, BF-TR951 incorporates high performance channel unit and power module to provide reliable, stable services.
- Military Level Structure
- Distributed Carrier Solution
- Base Station Failure Fallback
- Special Power Supply for Carrier
- Carrier With Superior Heat Dissipation
BF-TR955 Mobile Base Station
BF-TR955 is an integrated mobile base station that designed compact structure, featured flexible deployment and wide applications. It is the best choice for emergency rescues, patrolling, and other emergency scenarios to establish Trunking communication network and achieve unified dispatching.
- High Reliability
- IP65 Protection
- Highly Integrated
- 2.8-Inch Display
- Flexible Deployment
- DPD Technology
- Wide Coverage
- 5-Carriers & 8-Carriers
BF-TR952 Distributed Trunking Base Station
BF-TR 952 is a cost-effective Trunking base station for fast network establishment. Functioned as network access device, BF-TR952 is used to manage wireless access including air interface management, access control, mobility control, user resources assignment, etc.
BF-TR952 consists of BBU952 and RRU952. Its flexible distributed design satisfies different networking requirements and brings better covering performance.
BF-RRU952 Remote Radio Unit
BF-RRU952 is the RF section of the distributed base station designed to meet user expectations in service, capacity, transmission, power supply, installation, and maintenance. Adopts an integrated structure to support pole mounting, wall mounting, and vertical mounting for improved covering capacity and saving feeders.
- IP67 Protection
- Aviation Plug
- Wide Applicability
- Maximum 4*20W Output Power
- Specialized Power Supply for Carrier
BF-BBU952 Base Station Controller
BF-BBU952 featured operation and maintaining functions and supports hot standby main units, hot plugs, as well as one site operation to provide signal procession service.
- Centralized Management
- Monitoring Device Signals
- Centralized Network Maintenance
- Interconnecting Transmission Networks
BF-9500 Dispatching Management Platform
BF-9500 is a service-management-based command and dispatching system that integrates different communication modes. Based on subsystems of digital map, digital dispatching system, networking management system, and voice recording, it brings united command and management, helps to realize information sharing and improves response efficiency.
GIS (Geographic Information System)

- Geo Fence
- Location Map
- Real-time Positioning
- Statistics and Analyze
- Query Historical Track
- Regional/Route Planning & Control
Digital Dispatching System

- Remote Stun/Revive/Kill
- Individual Call/Group Call/All Call
- Broadcast Call/Emergency Call
- Long/Short Message, Status Message
- Emergency Alarm, Dynamic Group, Group Patch
- Override/Interrupt, Monitoring, Ambience Listening
NMS (Network Management System)

- Element Management
- User/Configuring Management
- Failure Manage and Maintenance
- Safety/Performance Management
- Remote Upgrading & Smooth Expansion
- Standard SNMP(Simple Network Management Protocol)
VRS (Voice Recording System)

- Recording Statistics
- Recording Playback
- Multi-lines Recording
- Real-time Local Recording
- Configuring User Information
- Server-Wide Audio Recording
MSC (Mobile Switching Center)
Consists of a switching control server, MSC dispatching server, network management server, recording server, and other interconnecting gateway equipment to interconnect system elements. Therefore, it conducts call control and voice exchange across base stations and systems and serves user mobility management, authentication, dispatching, network management, as well as system interconnection functions.
- Single MSC
- MSC Master/ Slave Networking
- MSC Distributed Networking
- Multi-MSC Interconnection.
NETWORKING MODE
Interconnecting Backbone Networks
Have district and county level Trunking system access to the prefecture-level network center to interconnect prefecture-level systems. And tandem prefecture-level network center to the Provincial network center to form a four level DMR network of districts, cities, provinces and ministries. Facilitates information sharing and timely information deliver to improve working efficiency.
One-Site Networking Solution
Users have the flexibility to networking on their covering range and service demands, and realize one-site networking.
One-MSC Solution
The system can be networked through the MSC and connect base station systems to the MSC via E1/IP link (can be fiber, microwave, 4G, satellite broadband, etc.) and realize one-site multi-base-station networking. Notice: the maximum networked base stations are 500.
Multi-MSC Solution
The digital Trunking system can be configurable with first-level, second-level, and third-level MSC, through the E1/IP link to realize Multi-Base-Station networking.
