Sipnetic

Sipnetic is a free VoIP softphone based on the SIP protocol. It allows you to connect to your VoIP provider, cloud PBX, or an enterprise telephony server.

⚠️ Important note

Sipnetic doesn’t offer a VoIP service. To use Sipnetic you need an account from a SIP service provider. When you use the New Account Wizard, make sure you already have the server address, login, and password.

Features:

• Compatibility with all standards-compliant VoIP providers and PBXes.

• Supports calling over 3G/4G and Wi-Fi.

• Modern UI.

• Great audio quality provided by the Wideband Opus codec. Legacy codecs, such as G.722, G.711, G.729, Speex, and GSM, are also supported.

• Acoustic echo cancellation and automatic gain control.

• Video calls using H.264 and VP8 codecs (Available as a Premium Feature).

• Support for various NAT traversal techniques, including STUN, TURN, and ICE.

• Instant Messaging with text and voice chat capabilities.

• Secure calls based on TLS, SRTP, and ZRTP protocols. End-to-end encryption of chat messages with OTRv3 protocol. ZRTP and OTR support is available as a Premium Feature.

• Integration with system contacts including built-in contact editor.

• Presence information support based on the SIMPLE protocol suite.

• Multiple SIP accounts support with automatic account selection.

• Ability to quickly configure an account by scanning a QR code.

• Advanced telephony features: call waiting, placing call on hold, attended transfer, sending DTMF digits, number rewriting, voicemail message waiting indication.

• Experimental Walkie-Talkie mode well suited for low-bandwidth links.

• Eight UI color themes.

• No ads, no user tracking, no personal data collection.

• Available in English, German, Dutch, Russian, and Ukrainian.

📹 Video calls experience may vary depending on the device and firmware capabilities. Sipnetic always uses the system implementation of the H.264 codec. Android 7.0 or higher is recommended.