Hi @Sonsar, let me see if I can help out here!
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
Could you please elaborate your question a bit? For example, are you not able to hear the ringtone or are you not able to choose a specific ringtone?
Please do elaborate and I will do my best to assist you! 
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