Vonex Phone

Vonex Phone is a SIP-based softphone that enables VoIP and SIP voice and video calls, plus instant messaging and easy meetings on mobile. With Vonex Push Service to improve battery life, you can stay connected and productive anywhere, whether at work, home, or on the go. The app is designed to streamline business communication across devices and teams, delivering high-definition audio, HD video when supported, and seamless team collaboration.

Technical highlights include support for HD codecs (G.722, Opus, SILK), optional wideband codecs, 720p HD video via H.264 or VP8 on compatible devices, and background multitasking to handle calls while using other apps. It also offers IPv4/IPv6 with NAT64, a predefined VoIP provider list, and compatibility with headsets and Bluetooth devices. Note: Vonex Mobile is a standalone softphone subscription and requires a SIP server or provider; emergency calls are not supported by the app.