Poly Plantronics EncorePro 310 Mono Call Center Headset

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The Poly EncorePro 310 catches muted calls Every call center has the moment where an agent talks for ten seconds before realizing mute never came off, and the customer on the other end heard exactly none of it. The Poly EncorePro 310 is built to catch that before it costs the call — Poly markets its Dynamic Mute Alert as the only verbal mute alert in this class of headset, speaking up the instant you start talking while muted, so the agent knows in real time instead of finding out from an annoyed customer. It's the mono model in Poly's EncorePro 300 series, the newer entry-tier line built for high-volume contact centers — priced below the established EncorePro 500 series without dropping the things that actually affect a shift: a noise-canceling boom mic, acoustic protection against sudden loud bursts on the line, and soft, replaceable foam cushions. The EncorePro 310 comes three ways — a Quick Disconnect version for desk phones, and USB-A or USB-C versions for softphones — and the connection you pick changes more than just the cable. Build the exact EncorePro 310 you need Three connection types, one for desk phones and two for computers — pick based on what your team is actually plugging into. Quick Disconnect (QD) — 77T43AA. For desk phones with a bottom cord or amplifier. The QD connector itself is tested to over 30,000 disconnect cycles, but the cord or amplifier that connects it to your phone is sold separately — confirm what your desk phone needs before ordering. [icon:usb-a] USB-A — 767G1AA. Plugs straight into a computer for softphone use. Includes inline controls for answer/end, volume, and mute, plus the verbal Dynamic Mute Alert. The pick for most standard desktops and older laptops. [icon:usb-c] USB-C — 760Q8AA. Same inline controls and Dynamic Mute Alert as the USB-A version, built for newer laptops and USB-C ports. Identical audio and features — the connector is the only difference. Does the EncorePro 310 tell you when you're muted? On the USB versions, yes — the Poly EncorePro 310 includes a Dynamic Mute Alert that verbally tells you you're muted the moment you start talking, a feature Poly positions as unique among headsets in this price tier. It's a small thing that solves a real, recurring problem: an agent talking into dead air for a full sentence before checking the mute light. [callout type="honest"]There's a wrinkle worth checking before you order. Poly's own USB listings describe the Dynamic Mute Alert clearly, but at least two independent resellers mark it "(USB only)" in their spec sheets — meaning the QD version, which connects to a desk phone rather than a computer, may not carry the verbal alert at all. If the mute alert is the reason you're buying this headset, confirm it applies to the QD version for your specific phone setup before committing to that variant.[/callout] The QD version needs a cord you'll buy separately Unlike some Poly Quick Disconnect bundles that ship with the phone cable included, the EncorePro 310 QD does not — you'll need to add a bottom cord or amplifier that matches your specific desk phone. It's an easy thing to miss if you've bought bundled QD headsets before and expect the cable to just be in the box. Is the EncorePro 310 built to last in a call center? Poly rates the EncorePro 310's Quick Disconnect connector for more than 30,000 disconnect cycles, which is the number that actually matters in a high-turnover contact center where headsets get unplugged and replugged dozens of times a shift. [stat]30,000+ QD disconnect cycles[/stat] Beyond the connector, acoustic protection (SoundGuard, with SoundGuard Digital G616 on the USB models) limits sudden spikes above 118 dBA coming through the line, and wideband audio up to 6,800 Hz keeps voices sounding natural rather than compressed. The ear cushions are foam and replaceable, which matters for the total cost of running dozens of these through a shared fleet — you're not replacing the whole headset when a cushion wears out. [compare] QD — for desk phonesConnects to a desk phone via a separately-purchased bottom cord or amplifier. 30,000-cycle QD connector for frequent unplugging. USB-A / USB-C — for computersPlugs straight into a computer for softphone calls. Inline controls and the verbal Dynamic Mute Alert included. [/compare] Mono, so one ear stays open The EncorePro 310 is monaural — one ear covered, the other open — which keeps an agent aware of a supervisor or a colleague nearby, at the tradeoff of blocking less room noise than a stereo headset would. If both ears covered fits your floor better, Poly's EncorePro 300 series also includes a stereo sibling, the EncorePro 320, built on the same platform. Manage a fleet without walking the floor [card title="Fleet management, if you need it"]The USB versions of the EncorePro 310 work with Plantronics Hub out of the box for basic settings and firmware updates. For larger deployments, Poly's Manager Pro software (sold separately) lets IT remotely adjust settings, monitor usage, and maintain every headset on the floor without physically touching each one — the kind of thing that matters once you're past a handful of seats and into dozens.[/card] The EncorePro 310 is the headset for a contact center watching both the budget and the return rate — a durable QD connector rated for real daily use, acoustic protection that keeps a long shift from wearing on an agent's ears, and on the USB versions, a mute alert that quietly prevents one of the most common, most embarrassing call center mistakes. Pick the connection that matches your phones or your computers, and it's ready to deploy across the floor, backed by HeadsetPlus's lifetime support. Poly EncorePro 310 mono headset with flexible noise-canceling boom mic Foam ear cushion (fitted, replaceable) Quick start guide The QD version does not include a bottom cord or amplifier — that's purchased separately based on your specific desk phone. The USB-A and USB-C versions include the attached USB cable with inline controls; no external adapter needed. Type Monaural (single-ear), over-the-head, on-ear Series Poly EncorePro 300 Series (entry tier, below the EncorePro 500 series) Microphone Flexible noise-canceling boom, voice-optimized frequency response Connector QD (Quick Disconnect, rated 30,000+ cycles), USB-A, or USB-C QD connection Requires a bottom cord or amplifier matched to your desk phone, sold separately Controls (USB versions) Inline answer/end, volume, mute; visual call indicator (green = on call, red = muted); verbal Dynamic Mute Alert Audio Wideband up to 6,800 Hz Acoustic protection SoundGuard; SoundGuard Digital with G616 and TWA on USB versions — limits sound spikes above 118 dBA Comfort Soft foam ear cushion (replaceable), lightweight build Software Plantronics Hub (USB versions); Poly Manager Pro for remote fleet management (sold separately) Platform (USB versions) Windows and macOS compatible; works with major softphone/UC platforms Part numbers QD: 77T43AA (old 214572-01); USB-A: 767G1AA (old 214568-01); USB-C: 760Q8AA (old 214569-01) Warranty Manufacturer warranty, plus HeadsetPlus lifetime technical support Software. The USB versions of the EncorePro 310 work with Plantronics Hub for basic setup and firmware, and with major softphone and UC platforms for call handling. For larger fleets, Poly Manager Pro (sold separately) adds remote configuration and monitoring across every headset on the floor. Hardware. The QD version connects to a desk phone through a bottom cord or amplifier purchased separately and matched to your specific phone model. The USB-A and USB-C versions connect directly to a computer with no external hardware required. Platforms. The EncorePro 310 is built for contact centers and office environments running high call volumes, where connector durability, acoustic protection, and mute-alert accuracy matter more than premium materials. Does the EncorePro 310 need an amplifier for my desk phone?The QD version of the Poly EncorePro 310 requires a bottom cord or amplifier to connect to a desk phone, and that cord is not included — it's sold separately and depends on your specific phone model. Confirm the right cord before ordering to avoid a return. Is the Dynamic Mute Alert available on the EncorePro 310 QD?It's confirmed on the USB-A and USB-C versions of the EncorePro 310. Some manufacturer spec sheets list the Dynamic Mute Alert as USB-only, so if that feature is the reason you're buying, confirm with your supplier whether the QD version includes it before choosing that connection type. What's the difference between the EncorePro 310 and the EncorePro 320?The EncorePro 310 is the mono model in Poly's EncorePro 300 series, covering one ear so you stay aware of the room. The EncorePro 320 is the stereo sibling in the same series, covering both ears for more isolation. Both share the same connector options and Dynamic Mute Alert. Does the EncorePro 310 work with softphones like Zoom and Teams?Yes. The USB-A and USB-C versions of the EncorePro 310 connect directly to a computer and work with major softphone and UC platforms, with inline controls for answer/end, volume, and mute built into the cable. How durable is the EncorePro 310 for a busy call center?Poly rates the EncorePro 310's Quick Disconnect connector for more than 30,000 disconnect cycles, which is built for environments where headsets get unplugged and replugged repeatedly through a shift. Acoustic protection also guards against sudden volume spikes coming through the line. Show more