HamMumble
Professional VoIP Communication for Ham Radio Operators
A modern, feature-rich Mumble client specifically designed for amateur radio operators. Built with cutting-edge Android technology to deliver seamless voice communication with specialized features for remote gateway control, repeater linking, and emergency communications.

Powerful Features for Professional Communication
Everything you need for reliable VoIP communication in amateur radio operations
Advanced Voice Communication
Professional-grade audio processing with multiple transmission modes.
- Voice Activity Detection (VAD)
- Push-to-Talk (PTT) with visual feedback
- Real-time VU meters
- Adjustable input gain (0.0 - 3.0x)
- High-quality codecs (Opus, CELT, Speex)
Hardware Integration
Seamless integration with external radio equipment and controllers.
- USB serial adapter support
- DTR/RTS signal control
- Hardware PTT buttons
- Radio interface compatibility
- Gateway control capabilities
Security & Authentication
Enterprise-level security with comprehensive authentication options.
- PKCS#12 certificate support
- Password-protected certificates
- Automatic user registration
- Registered user indicators
- Secure connections
Multi-Server Management
Manage unlimited servers with intelligent connection handling.
- Save unlimited configurations
- Auto-connect on startup
- Auto-join specific channels
- Real-time latency monitoring
- Automatic reconnection
Professional Audio Tools
Studio-quality audio processing and monitoring capabilities.
- Color-coded VU meters
- Start tone for VOX activation
- Customizable roger beep
- Voice hold timer
- Peak indicators
Rich Communication
Complete communication suite for team coordination.
- Text messaging support
- User presence indicators
- Channel management
- User lists with status
- Connection monitoring
Built with Modern Technology
HamMumble is developed using the latest Android development frameworks and best practices, ensuring optimal performance, security, and user experience.
Our technology stack guarantees a responsive, reliable, and future-proof application that meets the demanding requirements of professional ham radio operations.
Jetpack Compose
Modern declarative UI framework for smooth interfaces
Material 3
Latest design system with dynamic theming
Kotlin Coroutines
Efficient async operations and threading
Native Audio
High-performance audio processing with JNI
USB Serial
Hardware integration for PTT control
Mumble Protocol
Full implementation with Opus/CELT codecs
Perfect for Every Ham Radio Application
Designed to excel in diverse amateur radio scenarios
🚨 Emergency Communications
Reliable VoIP infrastructure for emergency response teams and disaster recovery operations. Auto-reconnect and channel persistence ensure continuous communication when it matters most.
🗼 Repeater Linking
Connect multiple repeaters and gateways for extended coverage. Hardware PTT support and serial control enable seamless integration with existing repeater infrastructure.
📡 Remote Gateway Control
Control remote gateways and transceivers with precision. Start tones for VOX activation and configurable roger beeps ensure proper gateway operation.
🌍 DX Operations
Coordinate international DX operations with low-latency connections. Real-time monitoring and registered user indicators help manage large groups efficiently.
Ready to Experience Professional VoIP?
Join the community of ham radio operators using HamMumble for reliable communication