In the standard phone book, contacts are displayed with the ability to call them through a standard application and for example, via Viber . Question: there can only be displayed VoIP clients or others too, and if so how to do it. Here is an example:

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    Nuggle you the answer: stackoverflow.com/questions/4293864/… - Vladyslav Matviienko
  • I do not quite understand what I need to do? - Kirill Stoianov
  • Add a specific content filter to your application - Vladyslav Matviienko
  • @metalurgus, well, it’s issued as a response - hardsky
  • @hardsky, I can’t give a complete answer, I just know which way to dig. Maybe, if no one does it, I will answer later, when there will be time - Vladyslav Matviienko

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