About MDA524 QD, USB-A, WW (8L544AA)

The Poly MDA524 QD is a smart audio processor built for contact centre and mixed-call environments. It bridges the gap between your desk phone and PC, letting agents handle both desk phone and softphone calls through a single QD-compatible headset. With independent volume and mute controls for each audio channel, agents stay in control of every conversation — without switching headsets or fumbling with cables.

Key Features

• One Headset, Two Call Sources — Connect to both your desk phone and PC so agents can take calls from either source without swapping gear.
• Independent Volume & Mute Controls — Separate controls for desk phone and softphone audio channels give agents full command over how they hear and are heard.
• Advanced Audio Mixing — Mix both audio channels at the same time, with support for agent greetings, call recording, voice notes, and streaming audio.
• Superior Noise & Echo Cancellation — Built-in noise cancellation, Anti-Startle protection, and G.616 compliance reduce listener fatigue and keep calls clear for both parties.
• Quick Disconnect (QD) Compatible — Works with Poly standard 4-pin QD headsets, including the EncorePro 500 and 700 Series, with a quick-release connector so agents can step away from their desk mid-call.
• Cloud Device Management — Poly Manager Pro lets IT teams manage device deployment, monitor performance, and push updates from a single cloud interface.

Why Choose This Product?

If your team runs a mixed-call environment and needs reliable, no-fuss audio switching between desk phones and softphones, the MDA524 QD is a great pick. It's built for busy contact centres where call quality and agent efficiency really matter. Our Telrexperts can help you pair it with the right headset for your setup.

What's in the Box

• Poly MDA524 QD Audio Processor
• USB-A Cable
• Quick Start Guide

About Poly

As a trusted Poly partner, Telrex is proud to offer a full range of headsets, conference phones, business phones, video conferencing, software, and services. Poly's wide range of communication solutions allows your business to stay connected regardless of your team's location. Our Telrexperts have helped thousands of clients in various industries, from government and education to healthcare and financial services.