Why my phone doesn't ring and automatically hangs up before receiving the incoming call?

[AC Question]

Please!!! Is there anyone who could help me. I am in a great trouble. I have to stay u far from my family and I can't receive calls from my family. I have been suffering a great problem because of this.My doesn't ring on incoming calls and just vibrates only.The vibration is also for a very short time. And whenever there is an incoming call, the phone automatically hangs up by itself before even answering it. I have checked the Do Not Disturb access and allowed "any calls" there. But it didn't work.Whenever I reboot my phone, the issue is solved but for a short time...the phone starts ringing. I thought my problem was solved but again it persisted. I realized that the issue was solved just temporarily but it again occurs after a day or even some hours.

If there is anyone who could help me I would be soooooooo much grateful to them. Plz plz plz.....help me find out the solution. I am tired of searching and trying for solving the issue for a long.So, I am really hopeful for finding the solution this time. Please..........

 

[belodion]

What phone is that?

 

[yamunabhattaraibest]

It's colors

 

[yamunabhattaraibest]

But it has Android features in it and many things in common with an Android iPhone. Could you please help?