This profile is referred to as the Hands-Free Profile (HFP). Most phones, head units, and many Bluetooth kits with HFP allow you to place and receive calls, dial numbers with voice commands, and access your address book. Many infotainment systems and head units have the Message Access Profile (MAP) Bluetooth functionality. It allows users to display text messages received on your phone. When paired with text-to-speech or speech-to-text functionality, Bluetooth texting allows users to text in a hands-free environment—exactly what’s needed while on the road. If your phone and the head unit also support the audio/video remote control profile (AVRCP), you can take it a step further and control playback from the head unit. This profile allows some head units to display metadata, like artist names, song titles, and album artwork. One alternative is to use a mobile hotspot instead, but for that, your head unit needs to be Wi-Fi-compatible or work with some other kind of hotspot protocol.
