DUSphone
Encrypted calls via dus.net
Free · Designed for iPad. Not verified for macOS.
Make encrypted HD calls over your dus.net line - incoming calls ring natively, even when your iPhone is locked.
dus.net GmbH proudly presents DUSphone – the VoIP softphone for your dus.net line. Make encrypted, HD-quality calls straight from your iPhone: to landlines, mobile numbers, and other dus.net lines.
All you need is a dus.net plan – ready in minutes, including a starting balance of €0.45 for your first calls. See the plans at www.dus.net.
Your benefits:
• Encrypted calling over TLS and SRTP – your conversations stay private
• HD voice quality powered by the Opus codec
• Native call integration via Apple CallKit – calls appear on your lock screen and in your recents, just like regular calls
• Always reachable: incoming calls ring reliably, even when your iPhone is locked or the app is closed (VoIP push)
• Call landlines and mobile numbers – and receive calls on your dus.net number
• Fast setup by scanning a QR code from the customer center – no password to type
• Manage several lines at once (multi-account)
• Company directory and device contacts – callers are matched by name
• Keep an eye on your prepaid balance in euros at any time
• Show or hide your caller ID per call (call anonymously)
• In-call DTMF, hold, speaker, Bluetooth, and call history
Privacy-friendly: no tracking, no ads. DUSphone is built on open-source software (baresip); the open-source licenses can be viewed in the app.
Requirement: DUSphone needs a VoIP line at dus.net. More information at www.dus.net.
More reliable incoming call delivery: your device now also announces its push token directly during SIP registration. Plus minor technical improvements.
The developer, dus.net GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- dus.net GmbH
- Size
- 11.2 MB
- Category
- Business
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 23 more
- English, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hungarian, Irish, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish, Swedish
- Age Rating
4+
- 4+
- Copyright
- © 2004-2026 dus.net GmbH