If I delete my What's app friends, can I still make phone calls?

If you delete what'sapp friends, you cannot make calls.

“The core of WhatsApp is a communication tool, focusing on the “free text messaging” application, weakening social interaction, and deeply integrating WhatsApp and mobile phone address books.”

WhatsApp Messenger, referred to as WhatsApp, is a Facebook company A cross-platform encrypted instant messaging application for smartphones. The software makes voice calls and video calls over the Internet, and uses standard mobile network phone numbers to send text messages, document files, PDF files, pictures, videos, music, contact information, user locations, recording files, etc. to other users. There is currently no official Chinese translation, but it is commonly translated as Waziaipu, Wazipu, etc.