[header] How to make free calls [title] Use facebook messenger to call from either your computer or smartphone. [step] You can use the messenger app or use the messaging feature on the facebook website. Select a contact in messenger, click on the " i " button, and press " make free call. 
" your contact will receive a notification, and your call will connect over the internet. [substeps] If you are calling from the facebook website, make sure you have a microphone installed.