“Call Me Back WordPress Plugin” is the best plugin for wordpress if admin want to get call request from customer. It has responsive interface with 7 nice build-in themes. Admin can set call request box as a popup or wordpress widget system and possible to customize all options and fields dynamically.
Demo https://codecanyon.net/item/call-me-back-wordpress-plugin/19621411
Downloadhttps://www.filecad.com/mqXR/Call-Me-Back-v2.0---WordPress-Plugin.rar