MetaVoIP 1.1.0 Update

Since we released MetaVoIP last year, the positive feedback was amazing.

Even tho it’s a quite simple solution, it seems to be just perfect for many others, too.

We’ll try to keep it updated and hereby push the second release v1.1.0.


The following was changed:

  • PJSIP Upgrade from 2.4.0 to 2.4.5
  • Qt Upgrade from 5.4.1 to 5.6
  • Visual Studio Upgrade from MSVC2013 to MSVC2015
  • PJSIP fix folder linking
  • DTMF sounds added
  • Pound & Star buttons fixed
  • Registration state implemented
  • Pound & Star buttons fixed
  • More pre-compiled PJSIP libraries
  • Several minor improvements

Download: CLICK

Any feedback is welcome:



  • Dominik

VoIP with Qt

Windows Client

Windows Client

All our applications use the Qt Framework and we searched a long time for a compatible SIP library and even requested it via Digia.

Parallel to the request, I decided to start researching and developing a solution myself and was surprised how quickly I reached a stable state with the PJSIP library.

My main project at work – „Midas„, makes heavy use of VoIP functionality including but not limited to simple calls between clients, muxing IP camera video streams into SIP video-calls and controlling door relays via DTMF.

Android Client

Android Client

In our view, this progress of having a stable way to use VoIP with Qt should not be kept internal, but shared with the Qt community!

Therefor I developed a simple cross-platform application called „MetaVoIP“. This application is available under GPLv2. The sourcecode package (including the wrappers, a sample client and a few pre-compiled libraries) is available below 🙂 For this project Qt 5.4.1 and PJSIP 2.4 were used.

In case you want to compile the PJSIP libraries yourself, please follow these guides.

Download: MetaVoIP

Feel free to use anything in the package, just remember to give proper credit 😉

For any questions regarding the code, bugreports or the like, feel free to contact me via


Happy coding,

– Dominik

Maxwell10 Stresstest & more

Our partner Gigaset just released it’s new luxury Android VoIP phone Maxwell 10. We already received our first bunch of units and are preparing for a stresstest before the first rollout.

For more information about the Maxwell 10 check out:

MIDAS v2 also does look quite decent on the device in our entrance area! 🙂

Maxwell 10 Debian Edition?! 😉