2025-07-17 00:00:00 Zoiper is a reliable and battery-friendly VoIP softphone that lets you make high-quality voice calls over Wi-Fi, 3G, 4G/LTE, or 5G networks. Whether you’re a remote worker, digital nomad, or VoIP enthusiast, Zoiper is the go-to SIP client for smooth and secure communication — without any ads. 🔑 Core Features: 📞 Supports both SIP and IAX protocols