VoxLink
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About this app
VoxLink is a push-to-talk (PTT) client for Android that connects to SvxLink reflector servers, enabling amateur radio operators to communicate over IP.
Connect to any SvxLink reflector with your callsign, select a talkgroup, and start talking. VoxLink handles the audio encoding, network resilience, and background operation so
you can focus on the conversation.
PUSH-TO-TALK
• Hold mode — press and hold to transmit
• Latch mode — tap to toggle transmit on/off
• Configurable time-out timer (TOT) with vibration warning
HIGH-QUALITY AUDIO
• Opus codec with FIR polyphase resampling
• Adaptive jitter buffer with packet loss concealment
• Speaker and earpiece audio routing
• TX and RX audio level metering
SERVER MANAGEMENT
• Multiple server profiles with quick switching
• JSON import for easy configuration sharing
• Talkgroup selection and monitoring per server
• Live node list showing connected stations with callsign, name, and location
RELIABLE CONNECTIVITY
• Automatic reconnect on connection loss
• Network change handling (WiFi ↔ cellular)
• Foreground service with wake lock for background operation
• Battery optimization guidance for uninterrupted use
MODERN DESIGN
• Material 3 / Material You with dynamic color theming
• 13 accent color options
• Clean, purpose-built interface for PTT operation
VoxLink implements the SvxLink Reflector Protocol V2 with TCP control and UDP audio. It supports 20ms, 40ms, and 60ms Opus frame durations at 16 kHz mono.
Requires access to a SvxLink reflector server. The app does not include or operate any servers. Contact your local amateur radio club or SvxLink community for server access.
No ads. No tracking. No data collection. Your server credentials are stored locally on your device only.
Connect to any SvxLink reflector with your callsign, select a talkgroup, and start talking. VoxLink handles the audio encoding, network resilience, and background operation so
you can focus on the conversation.
PUSH-TO-TALK
• Hold mode — press and hold to transmit
• Latch mode — tap to toggle transmit on/off
• Configurable time-out timer (TOT) with vibration warning
HIGH-QUALITY AUDIO
• Opus codec with FIR polyphase resampling
• Adaptive jitter buffer with packet loss concealment
• Speaker and earpiece audio routing
• TX and RX audio level metering
SERVER MANAGEMENT
• Multiple server profiles with quick switching
• JSON import for easy configuration sharing
• Talkgroup selection and monitoring per server
• Live node list showing connected stations with callsign, name, and location
RELIABLE CONNECTIVITY
• Automatic reconnect on connection loss
• Network change handling (WiFi ↔ cellular)
• Foreground service with wake lock for background operation
• Battery optimization guidance for uninterrupted use
MODERN DESIGN
• Material 3 / Material You with dynamic color theming
• 13 accent color options
• Clean, purpose-built interface for PTT operation
VoxLink implements the SvxLink Reflector Protocol V2 with TCP control and UDP audio. It supports 20ms, 40ms, and 60ms Opus frame durations at 16 kHz mono.
Requires access to a SvxLink reflector server. The app does not include or operate any servers. Contact your local amateur radio club or SvxLink community for server access.
No ads. No tracking. No data collection. Your server credentials are stored locally on your device only.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new
- Welcome screen to help you get started on first launch
- Auto-connect now works
- Option to fully close the app when pressing back
- Extra vibration warning when transmission timeout reaches 5 seconds
Fixed:
- Crash when dismissing the server import dialog
- Color picker menu was cut off on smaller screens
- Improved Portuguese translations
- Screen titles now align consistently across all tabs
- Auto-connect now works
- Option to fully close the app when pressing back
- Extra vibration warning when transmission timeout reaches 5 seconds
Fixed:
- Crash when dismissing the server import dialog
- Color picker menu was cut off on smaller screens
- Improved Portuguese translations
- Screen titles now align consistently across all tabs
App support
About the developer
Joel Fernandes Calado
apps@jcalado.com
Portugal