speakerphones

Speakerphones are devices that integrate a loudspeaker and microphone to enable hands-free voice communication. Used in offices, conference rooms, and classrooms, they support conversational meetings by allowing multiple participants to speak and be heard clearly without holding a handset. They range from compact USB units for personal use to large, multi-microphone endpoints designed for executive rooms.

Most modern speakerphones employ technologies such as full-duplex audio, acoustic echo cancellation, and noise suppression to minimize feedback and background noise. Many models use microphone arrays and beamforming to focus on voices from around the room. Connectivity varies: USB, Bluetooth, and IP networks; some support standard VoIP protocols like SIP or proprietary conferencing platforms.

Design considerations include microphone pickup range, 360-degree coverage, room acoustics, and compatibility with video endpoints. Features often include mute controls, volume, call control buttons, and accessories like expansion mics. Placement on a table or mounting in a room affects performance; good placement reduces reverberation and improves intelligibility.

There are several categories: portable USB speakerphones for personal use, mid-range conference speakerphones with multiple mics, and high-end systems intended for large conference rooms or huddle spaces. Some models are integrated into video conferencing systems or conference phones with remote participation. They are commonly used in business, education, and telemedicine.