I have a problem with my cell phone? Ick can't call?

I have a problem with my cell phone. Someone calls me, I press the green key, so confirm the call and the operator hangs up even though I do not press the end key. What's this? What is that supposed to be? I do not get it.

And I can't call again or back because the number is private number.

What should I do?

I have a Huawei Honor phone

Restart your phone…

My daughter always says dad wipe don't press on your phone!

Did you restart your cell phone?

If you don't use a number, many switch or block many personally, then you can't call them.

If a restart doesn't help, do a soft reset on your phone. No data is lost and the Android operating system is almost completely restarted.