is a feature-rich, lightweight VoIP (Voice over Internet Protocol) softphone that turns your Windows 10 PC into a fully functional telephone. Whether you need to connect to a business PBX, a SIP server, or an internet telephony provider, this version offers a stable and efficient communication solution—without the bloat of newer releases.
| Feature | Free Version | Pro Version (Paid) | | --- | --- | --- | | SIP/IAX2 Calling | ✅ Yes | ✅ Yes | | Multiple Lines | ❌ 1 line | ✅ Unlimited | | Call Recording | ❌ Disabled | ✅ Enabled | | G.729 Codec | ❌ No | ✅ Yes | | Custom Skins | ❌ No | ✅ Yes | | Commercial Use | ❌ Personal only | ✅ Allowed |