Plantronics T10H works with any h series headset.

Product Description
T10H Product Information
General
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Category: Home & Small Office
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Date Code: Located on bottom of amplifier
Specifications
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Supports analog phone lines, T10 1 line, T20 2 lines
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Supports tone or pulse dialing
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Ringer Hi/Low adjust
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On/Off hook switch
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Transmit mute
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Receive volume and tone
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Redial
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Flash w/variable delay 1, 2 or 3 seconds
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T20 includes hold and conference
Variants
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T10H: for use with H-series headsets, replaced SOH1870: 49948-01, no bi-lingual
Spares & Accessories
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45671-01 - AC Adaptor US Plug 110V
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45671-02 - AC Adaptor Euro Plug 220V
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46186-01 - Ear Cushion for M170/175 Series, Leatherette
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43297-01 - Earloop Kit (lg, md, sm)
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43298-01 - Headband, DuoSet
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45647-04 - Headset Spare
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45650-01 - Pivot Ball Ring
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27190-01 - QD Cord, Polaris Version (T10H only)
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40703-01 - QD Extension Cable 10ft. QD To QD, Standard Cable
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43548-01- Inline Mute Switch
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27019-03 - Training Y-Adapter
In The Box
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Phone Base
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Phone line cable
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AC adaptor
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M170 headset with headband/earloop kit
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QD cable (T10H only), H-series headset sold separately
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User Guide
HEADSET SOLD SEPERATE