Use 85638-01 as an extension cable for Cisco setups when using Plantronics wireless headsets on a Cisco phone with a sidecar. It extends the reach of the cable without altering the pin-out configuration.
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FREE shipping to mainland US on ALL orders
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Top-notch support
Lifetime Product Support
We care about you
FREE Standard Cables & Lifetime Warranty on all TruVoice Wired Headsets