TACTICAL VOICE NETWORK

EZVOX

Half-Duplex Push-to-Talk Communication

🎙️ Push-to-Talk 🔒 Encrypted ⚡ Opus Codec 📊 8–48 kbps 🔇 Anti-Feedback
Server Online

Built for Reliable Communication

📡

Half-Duplex PTT

True one-way communication like professional HT radio. Channel auto-locks when someone is transmitting — zero voice collision. Shows "CHANNEL BUSY" in real-time.

🔒

PTT Lock

Hands-free transmission toggle. Lock the PTT for continuous broadcast while driving, working, or in emergencies — no need to hold the button.

🔈

Motorola Beep

Classic Motorola radio beep on PTT release. Audible to all users in the channel — a clear signal that the channel is free to transmit.

🌐

Floating PTT

Transparent PTT overlay that floats above all apps. Draggable anywhere. Stay on comms while using maps, chat, browser, or any other app.

🔐

SSL Encrypted

End-to-end SSL/TLS encryption. Auto-provisioned certificates. Each device gets a unique SHA-256 ID — anti-spoofing, anti-impersonation.

📶

Auto Reconnect

Signal drop? Network switch? Tunnel? Auto-reconnects in 3 seconds silently. No error dialogs, no re-login required. Always on standby.

🎧

Anti-Feedback

Hardware echo cancellation + Speex dereverb processing. Two devices at 50cm distance produce zero feedback. Crystal clear audio without echo or howl.

Cool Operation

Smart WiFi/cellular lock switching, DTX silence detection, 8kHz sample rate. Device stays cool for hours on both WiFi and GSM. Battery optimized.

📊

Admin Dashboard

Real-time web admin panel. Manage users, channels, devices. Ban/kick users, edit callsigns, monitor live status — all from your browser.

Opus Codec with Intelligent Optimization

⚙ Dynamic Bitrate
  • VBR adapts bitrate to voice complexity in real-time
  • DTX cuts bandwidth 95% during silence
  • 8 kHz sample rate — Motorola HT analog character
  • 8 kbps emergency to 48 kbps maximum quality
  • VBR constraint keeps bitrate stable, no spikes
📡 Signal Resilience
  • Forward Error Correction recovers lost packets
  • 10% packet loss tolerance for poor GSM
  • 3-second auto reconnect on signal drop
  • Efficient background standby without battery drain
  • Smart WiFi/cellular lock auto-switching
🎧 Audio Processing
  • Hardware AEC — per-device echo cancellation
  • Hardware noise suppressor removes ambient sound
  • AGC 24000 — consistent volume, loud & clear
  • Software mic gain 4x for low-power devices
  • VOICE_COMMUNICATION mode for Android built-in DSP

Technical Details

8–48
Bitrate kbps
8 kHz
Sample Rate
200
Max Users
Opus
Codec
SSL
Encryption
3s
Reconnect
VBR
Dynamic
24/7
Uptime

Get EZVOX Free

v2.1.1 · ANDROID
↓ DOWNLOAD APK
Android 5.0+ · ~15 MB
Free · No Ads · No Limits
Updated March 2026 · Install over existing version