Zoiper-free-3.15-setup.exe
| Feature | Why It’s Cool |
|---------|----------------|
| NAT Traversal (STUN, ICE, TURN) | Works behind firewalls / home routers without manual port forwarding. |
| Custom Audio Codecs (iLBC, GSM, Speex) | Low-bandwidth calls – perfect for unstable connections. |
| Call Recording (WAV format) | Save important conversations locally. |
| ZRTP / SRTP encryption | Secure your calls in the free version – rare for gratis softphones. |
| Command-line automation | Launch calls, hang up, or change status via scripts (good for integration). |
Yes. The "Free" edition is genuinely free for personal use. However, it does come with limitations compared to the paid "Pro" or "Business" editions: zoiper-free-3.15-setup.exe
| Feature | Zoiper Free 3.15 | Zoiper Pro |
| :--- | :--- | :--- |
| Cost | Free | Paid subscription |
| Call duration | No limit (but see below) | Unlimited |
| Commercial use | Not allowed (personal only) | Allowed |
| Custom ringtones | No | Yes |
| Call recording | No | Yes |
| Skin/themes support | No | Yes |
| Support response time | Community/forums only | Priority email/chat | | Feature | Why It’s Cool | |---------|----------------|
Important note on call duration: While Zoiper Free does not restrict call length by itself, some VoIP providers impose limits on free accounts. Always check with your VoIP service provider. The "Free" edition includes ads in the dialer
Zoiper Free 3.15 provides:
The "Free" edition includes ads in the dialer interface and lacks certain Pro features (call recording, transfer, advanced codecs, multi-line support).