Teleman is SaaS application that allows you to make calls to your customers to promote your products. There is an IVR dialer where you can live call your customers and sell products.
Demo: https://codecanyon.net/item/teleman-telemarketing-voip-service-saas-application/38731429Osterisk is a powerful multi-purpose WordPress theme for businesses.
Demo: https://themeforest.net/item/osterisk-voip-cloud-services-wordpress-theme/23077398Voifone is a Multipurpose VOIP Business HTML5 Template designed for All kinds of VOIP, Technology, Domain and Hosting Business. It’s an HTML5 template based on Bootstrap v4.x.
BizWalls is a fully responsive multipurpose VOIP and virtual phone WordPress theme designed for all kinds of VOIP, telecommunications, cloud services and hosting.
Demo: https://themeforest.net/item/bizwalls-responsive-voip-virtual-phone-business-wordpress-theme/20294449