Plantronics PTH100 SpectraLink & Nortel WLAN Mono Noise-Canceling Headset
The PTH100 stops the SpectraLink buzz
Plug a normal headset into a SpectraLink handset and you'll often hear it before your caller does — a faint buzz or hum riding under every call. The Plantronics PTH100 exists to solve exactly that. It's a mono, noise-canceling headset with specially shielded cords, built so SpectraLink and Nortel WLAN wireless handsets stay quiet.
It isn't a different-sounding headset or a fancier one. The PTH100 is a standard Plantronics H-series mono headset with one critical change: shielding in the cable that blocks the interference these wireless phones produce. Everything else is the familiar headband with a noise-canceling mic and a Quick Disconnect.
Why a standard headset buzzes on SpectraLink
SpectraLink and Nortel WLAN handsets are wireless, and the radio they use to stay connected leaks enough interference that an ordinary headset cord picks it up and turns it into an audible buzz or hum. The PTH100's cords are shielded to block that interference, so the line stays clean. That's why you can't just use any Plantronics headset with these phones — it has to be the shielded version.
One invisible change, and it's the whole point
The PTH100 looks like any other mono Plantronics headset because, apart from the cords, it is one. The shielding is invisible, and it's the entire reason the product exists: it's what turns a buzzing, unusable connection into a clean call on a SpectraLink or Nortel WLAN handset. Same comfort, same noise-canceling mic — just cords that don't pick up the phone's radio.Which phones the PTH100 fits
The PTH100 is made for SpectraLink wireless handsets and the Nortel and Avaya phones built on the same platform. It's certified for the SpectraLink PTB410, LTB100, E340, H340, I640, 8020, and 8030, and it's also the shielded headset for the Nortel WLAN 2210 and 2211.
Because it ships with both a 2.5mm and a 3.5mm shielded cable, the PTH100 connects to whichever jack your handset uses — there's nothing else to buy and no amplifier involved. If your phone isn't a SpectraLink or Nortel WLAN handset, though, you don't need the PTH100.
PTH100 or PTH200?
SpectraLink users have two shielded options, and the choice comes down to your environment.
A mono headband with a noise-canceling microphone. The pick for normal or noisy environments, where you need to keep background noise out of the call.
An over-the-ear style with a clear voice tube instead of a mic. The pick for relatively quiet environments and anyone who prefers an earhook.
The PTH100 is a single-purpose tool, and it does that one job completely: a clean, buzz-free connection to a SpectraLink or Nortel WLAN handset, in a comfortable mono headset with the right shielded cables already in the box. If you run these wireless phones, it's the headset built for them, backed by HeadsetPlus's lifetime support.
- Plantronics PTH100 mono noise-canceling headband headset with Quick Disconnect
- Shielded 2.5mm connector cable (QD to 2.5mm)
- Shielded 3.5mm connector cable (QD to 3.5mm)
- Soft ear cushion (fitted) and quick start guide
Both cables are included, so the PTH100 connects to whichever jack your SpectraLink or Nortel WLAN handset uses — no amplifier or extra parts needed.
| Type | Monaural (single-ear), over-the-head headband |
|---|---|
| Microphone | Noise-canceling |
| Connector | Poly Quick Disconnect (QD) |
| Included cables | Two shielded QD cables — 2.5mm (old 64279-02) and 3.5mm (old 40845-01) |
| Purpose | Shielded cords mitigate the buzz/hum that SpectraLink and Nortel WLAN wireless handsets cause with standard headsets |
| Compatible handsets | SpectraLink PTB410, LTB100, E340, H340, I640, 8020, 8030; Nortel WLAN 2210 / 2211; SpectraLink-built Nortel and Avaya wireless handsets |
| Base / lineage | Plantronics H-series mono noise-canceling headset (historically based on the H51N SupraPlus) |
| Quiet-environment alternative | PTH200 (earhook style with clear voice tube) |
| Part number | 783Q1AA+85Q37AA+85S11AA (older part 61934-11) |
| Warranty | 2-year manufacturer warranty, plus HeadsetPlus lifetime technical support |
Handsets. The PTH100 is built for SpectraLink wireless handsets — the PTB410, LTB100, E340, H340, I640, 8020, and 8030 — and for the Nortel WLAN 2210 and 2211 and the SpectraLink-platform Nortel and Avaya wireless phones. Confirm your exact model before ordering.
Connection. The headset ends in a Poly Quick Disconnect and includes two shielded cables, 2.5mm and 3.5mm, so it plugs directly into the headset jack on your handset. No amplifier or additional cord is required.
Note. The shielding addresses interference specific to these wireless handsets. On a standard desk phone, softphone, or any other platform, you don't need the PTH100 — a regular Plantronics H-series headset is the correct, lower-cost choice there.
FAQ
Frequently Asked Questions
SpectraLink and Nortel WLAN handsets are wireless, and their radio leaks interference that an ordinary headset cord picks up as an audible buzz or hum. The Plantronics PTH100 uses shielded cords that block that interference, keeping the line clean. A standard headset will buzz on these phones, which is exactly the problem the PTH100 is built to solve.
The PTH100 is certified for the SpectraLink PTB410, LTB100, E340, H340, I640, 8020, and 8030, and it's also the shielded headset for the Nortel WLAN 2210 and 2211 and SpectraLink-built Nortel and Avaya wireless handsets. If your model isn't on this list, confirm it before ordering.
Yes. The PTH100 ships with both a 2.5mm and a 3.5mm shielded cable, so it connects to whichever jack your SpectraLink or Nortel WLAN handset uses. Nothing else is required — no amplifier and no extra cord.
Both are shielded SpectraLink headsets. The PTH100 is a headband with a noise-canceling microphone, for normal or noisy environments. The PTH200 is an earhook style with a clear voice tube instead of a mic, for relatively quiet environments. Choose the PTH100 when you need to keep background noise out of the call.
Yes. The PTH100 has a noise-canceling microphone that keeps your background out of the caller's ear, in a comfortable single-ear headband. It's the noise-canceling member of the shielded SpectraLink pair; the PTH200 uses a voice tube instead.