Beginning May 11th, T-Mobile will add a new feature that will allow Wi-Fi calling capable devices to make and receive phone calls WITHOUT using in-plan minutes. Hallelujah!!!! Qualifying customers with Wi-Fi calling capable devices will receive a text message in the coming days alerting them to this feature directing them to T-Mobile.com to add the feature. Customer care will also aid in the addition of this feature to a customers account. The best news? It’s available to Even More, Even More Plus and 4G Do More rate plans! Happy dance!