“I'm wondering if this headset may be compatible with a Vertical SBX IP phone? How does the headset link into the phone system?”

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• Our CS500 series headsets come with a charging base that communicates the headset wirelessly. The base itself connects to the telephone via the included telephone interface cable (RJ9 plug) or via an optional Electronic Hookswitch Cable (if applicable to your specific phone model). You can check compatibility by searching for your phone's manufacturer and model number using our Compatibility Guide: http://www.plantronics.com/us/compatibility-guide/

  Answered by PlantronicsRepresentative 9 years ago

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• This will work with with most desk telephones.

  Answered by CommunityAnswer 9 years ago

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