Your Plantronics or Poly wireless headset is beeping in a code no one hands you a key for. There are only a few patterns, and each has a one-step fix.
Plantronics and Poly wireless headset beep codes
Match what you hear to the table. These apply to the Poly (formerly Plantronics) CS500 and Savi wireless series. The exact pitch can differ between models, but the patterns hold.
| What you hear | What it means | What to do |
|---|---|---|
| 1 beep every 10–20 seconds (on a call) | Low battery | Recharge on the base, 1–3 hours |
| 3 low tones when you press the call button (off a call) | Critically low battery | Recharge immediately |
| 2 beeps | Out of range | Move closer to the base (a single mid tone confirms you're back in range) |
| 3 rapid beeps every 15 seconds | Microphone muted | Press the mute button once (the base LED is solid red while muted) |
| 3 short beeps per ring | Incoming call (with an HL10 lifter or EHS cable) | Press the call button to answer |
| Single beep as you press the volume button | Volume step confirmation | Normal, no action needed |
Still beeping low after a full charge
If a headset that used to last a full shift now warns low by mid-afternoon, the battery has worn out, not the headset. These batteries are rated for about 500 full charge cycles, and on the CS500 and Savi families they are user-replaceable. Use a genuine Poly battery, since third-party ones are behind most "my new battery only lasts two hours" complaints.
Out-of-range beeps that don't stop
If the beeping turns into static or dropouts that persist even next to the base, it is a different problem. That usually points to interference or a lost subscription between the headset and base.
Muted, and callers still can't hear you
The three-beep reminder stops as soon as you unmute. If callers still can't hear you afterwards, run a quick headset mic check to see whether the mic is sending sound at all.
Why is my Plantronics wireless headset beeping?
It is signalling one of a few conditions: one beep every 10–20 seconds is low battery, two beeps is out of range, and three rapid beeps every 15 seconds is a mute reminder. With an HL10 lifter or EHS cable, three short beeps signal an incoming call.
How do I stop my headset from beeping three times?
Three rapid beeps every 15 seconds means your microphone is muted. Press the mute button once and the beeping stops. The base's mute LED is solid red while muted.
My Poly headset beeps twice. What does that mean?
Two beeps is the out-of-range warning. Walk back toward the base and you'll hear a single mid tone confirming the connection is back. Persistent static near the base points to interference or a lost subscription.
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