Use APKPure App
Get Quick call for WhatsApp app old version APK for Android
Quick audio calls to your favorite contacts in one touch. Save your time
Helps you to make quick calls to only one favorite contact (wife, mom, husband, etc)
How it works?
1) Select your favorite contact from address book
2) Everytime you press "Quick call" icon app will call contact you select before (audio call)
If you need to change your favorite contact you should re-install application and select contact from address book again.
Hint: This app is not an official WhatsApp applications and not associated with WhatsApp Inc.