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About Secure VoIP

Make Secure Calls on your Smartphone Device

The Secure VoIP allows customers to move away from traditional 'fixed' lines to their existing smartphone device without losing any of the rich features they have come to expect from their existing phone system.

All you need is:

- An Android handset

- An internet connection

- A headset for best audio quality

- A VoIP account

Secure VoIP benefits:

- Easy to use

- Free of charge

- Quick and Simple Installation

- Control all your call settings from right inside the App

- Cloud PBX features

- High Definition Video Calling and Conferencing

- Secure - supports TLS

- Opus codec support for dynamic adaptive call quality

- High Definition Wideband Voice (Opus & G.722) and Video (H.264)

- Conferencing, 3 way calling and call transfers

- Mute, Speakerphone, Integration with existing contact lists

- Push notification support for background operation

Distributed under GPLv3 License

Copyright Belldonne Communications

What's New in the Latest Version 5.2

Last updated on Dec 21, 2023

Software and API updates. SMS messaging now supports replies and full 2-way SMS messaging with other on-network users.

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Additional APP Information

Latest Version

Request Secure VoIP Update 5.2

Uploaded by

Nguyễn Hoàng Hiệp

Requires Android

Android 6.0+

Available on

Get Secure VoIP on Google Play

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Secure VoIP Screenshots

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