Hands-free [work] - Telephony

| Technology | Role in hands-free telephony | |------------|-----------------------------| | (Hands-Free Profile) | Core protocol for car kits and headsets | | VoIP (SIP, WebRTC) | Enables hands-free on computers/smart speakers | | Noise suppression (AI-based) | Reduces wind, engine, or crowd noise | | Full-duplex audio | Both parties speak simultaneously without clipping | | Wideband audio (HD Voice) | Clearer sound than old phone lines (50 Hz–7 kHz) |