Woocommerce call for price plugin using with to setup know woocommerce product price which want to ask customer . it like call by price in woocommerce.
For example Customer want to know from seller product color, product size, product warrenty all that part can be ask to seller of product in Woocommerce which can be ask.
If you want to use whatsapp with Call for price for woocommerce than there you can using setting Whatsapp, Phone Call as well custom link for enquiry for Woocommerce Product.
WordPress woocommerce call for price mostly use to seller who have virtual product in woocommerce.