Backspace Key isn't working in Dialpad

[Android Central Question]

Initially few keys were not working in portrait mode but that is fixed with the help of SwiftKey but still, the key of backspace isn't working after dialing a number and send key of whatsapp also stopped working.

Kindly suggest, It'll really help a lot.

 

[B. Diddy]

Welcome to Android Central! You can't backspace when you're within a call. Pressing any digit while you're in a call immediately sends the tone. Backspace only works before​ you initiate the call.