Requires Python 3.10 or newer. Run the downloaded bundle; Qt is installed into a private environment if needed.
# Windows
py ipsc3net.pyz
# macOS / Linux
python3 ipsc3net.pyz
Select a server, connect, choose the talkgroup and enter the controller callsign, then select Start Net. The selected server must have the Net Console API installed. Updates are deferred while a net is running.
Desktop Install Guide
Pick the operating system below. IPSC3qt installs its QT dependency automatically on first run.
Windows 11
Install Python 3 from python.org or the Microsoft Store first. If using the python.org installer, enable the option to add Python to PATH.
PowerShell
mkdir $env:USERPROFILE\IPSC3
cd $env:USERPROFILE\IPSC3
Invoke-WebRequest https://ipsc3.freedmr.uk/downloads/ipsc3qt -OutFile ipsc3qt.py
py .\ipsc3qt.py
Radio provisioning packages for IPSC3 Push-to-Talk over Cellular.
Primary download
Production release 0.6.3
Recommended for all supported radios. Includes News, Emergency and Administrative broadcasts, AllStar channels, private POC groups, microphone controls and improved installer support. Both installers and all four radio firmwares are Build 90.
Version 0.6.3Build 90Built 30 Oct 2026
Windows x64
Windows POC Installer
Provision and update a supported IPSC3 POC radio from a Windows computer.
The Windows and macOS installers select the correct IPSC3 POC package for each supported radio family.
Production release
In this release: 0.6.3
Build 90: smoother UDO/Abbree 8900 AllStar transmission: an independent audio worker maintains packet timing during interface stalls, fixing choppy or slowed speech. AllStar transmit level is reduced by 6 dB compared with Build 86, with the TX meter showing the transmitted level. POC audio, receive audio and indication tones are unchanged; other radio models retain their existing audio calibration.
Emergency, News and Administrative broadcasts: saved category switches enable automatic off-channel reception, with Emergency taking precedence. Enabled broadcasts can override the selected POC or AllStar channel, without interrupting your transmission. Alert Only plays an alert instead of off-channel speech; select the broadcast talkgroup to listen.
AllStar channels: native IAX2/PCMU audio, named node presets, account verification and automatic retries. Both installers can manage up to 100 presets. POC direct calls, SMS and location reporting continue while using AllStar. This supports one outgoing node link, not incoming links, hub operation or a DMR-to-AllStar bridge.
Private POC groups: compatible servers announce member-only groups and receive/transmit permissions. Automatic reply dwell restores your previous public or AllStar channel after a group conversation. Groups require administrator-assigned membership and stay local to that server; they are not end-to-end encrypted.
Microphone controls: 0, -3 and -6 dB gain choices and an optional four-band transmit equalizer, adjustable from -4 to +4 dB per band. Receive audio and device calibration are unchanged.
Portable configuration backups: save and load common radio settings across supported models. Loading stages settings for review rather than writing automatically. Backups are not encrypted and may contain an AllStar password; keep them private.
Installer reliability: Android 8.1 provisioning and AllStar transfers, byte-preserving Windows settings uploads, and verified Anysecu hardware-key service recovery after AllStar sync.
New Troubleshooting tab: both installers explain Developer options, USB debugging and computer authorization for the Anysecu W2Pro and UNIWA F400, even without a radio connected.
IPv6 carrier support retained: IPv4, native IPv6 and carrier DNS64/NAT64 audio connections use one persistent UDP socket for registration and audio.
Both installers and all four radio firmware packages are version 0.6.3, Build 90.
Extract the entire ZIP and keep its tools folder with the installer. Confirm Version 0.6.3, Build 90, then load the radio's existing settings before updating. Existing settings and Android signing certificates are retained; no factory reset is needed. The macOS package is ad-hoc signed, not notarized, so macOS may require security approval. The Windows installer is cross-built and still needs field validation on Windows. See the POC client guide for operating details.
Pi-Star
Installer helper for Pi-Star hotspot systems.
Pi-Star IPSC3 Host Installer
Adds DMR+_IPSC3-FREEDMR-UK to the Pi-Star DMR Hosts files.