Hi there,
I will develop calling Android mobile app for you as per your requirements. I have 5 years of experinec in iOS/Android mobile application develoment using kotin, java languages. Please initiate chat and discuss the project in private chat.
Feel free to message me anytime, I am available 24/7 on freelancer for chat or even for phone call also. Looking forward to your affirmative response.
Best regards,
Hitesh