What does the symbol mean on my call list on my Huawei mobile phone?

I wanted to know what this symbol means.

I have a Huawei cell phone.

This is simply a symbol that shows that you have been on the phone with this person

If the arrow goes away from the cell phone, it means that you called, the other way you were called

Does it also mean that the call was accepted?

Take a screenshot.
Means which calls you have made.

Yes

Arrow away from the phone - you called

Arrow goes to the phone - you have been called

X on the phone usually means missed