A user equipment (UE) provides for display, to a user, information identifying available over-the-top (OTT) services provided via voice-over-Long-Term Evolution (VoLTE), and receives, from the user, a selection of a particular OTT service of the available OTT services. The UE receives, from the user, information identifying a selected contact associated with the particular OTT service, and determines whether a particular UE associated with the selected contact is a VoLTE capable device or a non-VoLTE capable device. The UE provides a call to the particular UE, via a LTE network and an Internet protocol (IP) Multimedia Subsystem (IMS) network, when the particular UE is a VoLTE capable device.