Descriptions : Sipnetic is a free VoIP softphone based on the SIP protocol. You can connect to your VoIP provider, cloud phone system, or corporate phone server.
Features :
+ Supports 3G / 4G and Wi-Fi calls.
+ Modern user interface.
+ Acoustic echo cancellation and automatic gain control.
+ Video calls with H.264 codec (available as a premium function).
+ Instant messaging with text and voice chat functions.
+ Integration with system contacts including an integrated contact editor.
+ Support of presence information based on the SIMPLE protocol suite.
+ Support for multiple SIP accounts with automatic account selection.
+ Light and dark UI themes (available as a premium feature).
+ No advertising, no user tracking, no collection of personal data.
+ Available in English, German and Russian.
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]
