Are wireless headsets for office phones reliable?

In most normal office layouts, yes – provided you match the headset to the phone system and keep expectations sensible about range, DECT and Bluetooth options have their pros and cons. DECT has better range, Bluetooth being better for multi-device connectivity. Wireless is best used when you are within the range of the base station and avoid excess digital signal congestion. When you frequently leave your desk or when you work in a building that has thick walls, consider whether a wired backup line may be of benefit with regard to critical calls. To use on a daily basis, a well-installed wireless headset can be stable and convenient when using office phones.