Hardware & Endpoints
Conference Phone
By Myroslav Orshak · operates licensed carrier infrastructure · Updated September 2026
A conference phone is a speakerphone built for a meeting room, designed so several people around a table can be heard clearly by whoever is on the other end — which is a harder problem than it sounds.
How it works
A good one is mostly microphones and processing. Several microphones point in different directions so the device can favor whoever is speaking, and echo cancellation stops the far end hearing themselves through your speaker. Without that processing, a speakerphone in a hard-surfaced room produces exactly the muddy, echoing sound everyone recognizes from bad conference calls.
The specification that matters is microphone pickup range, quoted in feet or meters. That number, matched against your actual table, decides whether people at the far end are heard properly. For larger rooms, units accept extension microphones that sit further down the table and connect back to the base.
Why it matters
The value is entirely in the experience of the people not in the room. If they spend the call asking others to repeat themselves, the meeting takes longer and decisions get made badly. That cost is invisible to the people around the table, which is why underspecified conference phones survive for years.
Before buying anything, though, look at the room. Hard walls, glass and a bare table create reflections that no amount of processing fully removes, and a device sitting next to a noisy air vent will pick up the vent. Soft furnishings, a rug, or simply moving the unit away from the projector fan often improve a call more than replacing the hardware.
Manufacturers quote a pickup range: about 10 feet for older or smaller units, and up to 20 feet for current flagship models such as the Yealink CP965. A table longer than that needs extension microphones, or people at the far end are audibly quieter to everyone on the call.
Related terms
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Compare business phone systems →Frequently asked questions
Do I still need one if we use video calls?
Often not. Many rooms are better served by a video bar that handles camera and audio together. A dedicated conference phone still makes sense for rooms that host audio-only calls, or where the phone system is the primary way people join.
How do I stop echo on conference calls?
Most echo comes from the far end's setup or from a laptop also joined in the same room with its microphone open. Check for a second device in the room first, since that is the usual cause. Beyond that, moving the unit away from walls and hard surfaces helps more than any setting.
How big a table can one cover?
Match the manufacturer's pickup range, usually 10 to 20 feet, against your table. Beyond that you need extension microphones. Buying a single unit for a long boardroom table is the most common mistake and produces exactly the complaint you were trying to fix.
Does it need a separate power supply?
Many are powered over the network cable through PoE, which means one cable to the middle of the table instead of two. Check before installing, because running an electrical outlet to the center of a room is the expensive part of the job.