Downloads

Download HelixPhone

Free Windows softphone with a full developer API. Multiple versions available below.

Released February 18, 2026

Initial release of HelixPhone

155 downloads View changelog →

Windows 10 or 11

64-bit operating system required

.NET 8.0 Runtime

Will prompt to install if missing

SIP Account

From your VoIP provider or PBX

Microphone & Speakers

Or a headset for best quality

First-time Install Note

Windows SmartScreen may prompt you before running. Click More info → Run anyway. This is normal for unsigned applications.