I want to get the phone number, which is calling me. But in the Call Service I can’t find any function about getting this information. Can someone help me?
Use AT commands to do it. AT+CLCC command will be OK.
Another one for the list of things that ought to be provided by the API, but are not - so you have to mess about with AT Commands! 
Thank you for reply !
I’ll try this way.
You could also try AT+CLIP=1