Calling PLUS includes all the capabilities of Wi-Fi Calling and adds the ability to make and receive calls over Sprint’s LTE network. With Calling PLUS you can browse the Internet and use other apps that require data services while you are on a call.
It's simple to use with no separate application or log-in required. Calling PLUS is a free service, and minutes used while on Calling PLUS do not count toward any calling plan limits. International rates still apply for international numbers.