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Poly (formerly Plantronics) 40845-01 or 3.5mm QD Cable for H-Series headsets is compatible with many devices using a standard 3.5mm jack such as:
Poly 48045-01 or 3.5mm QD Cable for H-Series headsets enable you to connect your H-Series headset directly to your desk phone – no amplifier or audio processor required. In order to be able to use a direct connect cable, your phone must be headset ready.
TECH TIP: Yealink headset compatibility guide
When using any H-series headset, a Direct Connect Cable or amplifier is required to plug in between your headset and phone. Using a Direct Connect Cable will save you money versus an amplifier, but an amplifier will provide optimum sound quality and volume controls.
Direct Connect Cable:
Amplifier: (Poly M22)
** For iPhone and Blackberry please use 38541-02
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