Wired, Wireless or DECT: Choosing a Connection for Contact Centres

In a contact centre the connection type is an operational decision, not a convenience one. It determines density, battery logistics and what happens on a bad day.

Wired is still the default for a reason

No battery, no pairing, no interference, and the lowest cost per seat. It cannot be misplaced and it cannot run out mid-call. The limitation is obvious and real: the agent is tethered. For fixed-desk roles this rarely matters, and the absence of an entire category of failure is worth more than most teams expect.

Bluetooth is convenient and crowded

Bluetooth suits individuals well and dense floors poorly. It shares the 2.4 GHz band with your wireless network and every other headset in the room, and range is short enough that agents discover the edge of it by walking into it. For a handful of hybrid workers it is fine. For two hundred adjacent seats it is a support queue.

DECT exists because of that density problem

DECT uses a dedicated band, gives far longer range, and is designed for many devices in one building without degradation. It costs more per seat and needs base stations. For large floors where agents move — supervisors, floor-walking, anyone stepping away to check something — it is usually the only option that behaves predictably at scale.

Battery logistics are the hidden cost of going wireless

Any wireless fleet needs a charging discipline and spare headsets for the ones that did not get charged. Shift patterns that exceed battery life need either two batteries or two headsets per seat. This is a real recurring cost and it belongs in the comparison rather than as a surprise in month two.

A practical split

Most centres end up mixed: wired at fixed desks, DECT for supervisors and roaming roles, Bluetooth for home workers. Choosing one technology for the whole floor optimises the procurement process rather than the operation.