"To end the call" means to formally bring a phone conversation or communication to a close. It involves hanging up the phone or disconnecting the call.
Sentences with «to end the call»
My wife is as christian as they come, yet she would put any high end call girl to shame. (religion.blogs.cnn.com)
Would you like to finally end these calls for good? (hoyes.com)
There's also the option to hide the bubble or end the call by dragging it down to the bottom of the screen. (digitaltrends.com)