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QD stands for Quick Disconnect. It allows you to separate the headset from its lower cable without removing the headset or unplugging the cable from your desk phone.

No. Compatibility depends on your exact phone model, headset port, cable, and wiring configuration. Confirm the required RJ1, RJ2, or RJ4 version before purchasing a Wantek QD headset.

QD is a detachable connection between the headset and its lower cable. RJ9 refers to a modular connector commonly used with desk phones. They serve different purposes and are not interchangeable.

The H600 is a single-ear headset that keeps one ear open to nearby activity. The H602 is a dual-ear headset that delivers call audio to both ears. Both have QD versions.

A QD headset needs a compatible lower cable to connect to your calling device. Check the selected product's included accessories, QD connector, and required phone-side wiring before ordering.

The RJ9 versions in this collection are designed for compatible desk phones, not direct USB computer connections. Computer use would require a specifically supported adapter or connection solution.

Not necessarily. Disconnecting the QD connection separates the headset from the phone's audio path, but it does not guarantee that the call is placed on hold. Use your phone's call controls to manage the call.