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Plantronics Headset Adapter Compatibility Table for Cisco, Polycom SoundPoint, and Digium IP Telephones




Telephone Model Wired Headset Adapter
Cisco 7900 Series IP Headset Interface Cable for Cisco Phones
7931G, 7940, 7941G, 7942G, 7945G, 7960, 7961, 7961G, 7962G, 7965G, 7970, 7971,7971G, 7975, 7975G  
Polycom SoundPoint IP  
Polycom SoundPoint IP 300, 301, 335, 430, 450, 500 (rev. E or later), 501, 550, 560, 600, 601, 650, and 670 Polaris Cable
Polycom SoundPoint IP 320, 321, 330, 331 (running SIP software 3.0 or higher) Quick Disconnect to 2.5 mm Cord
Digium IP Polaris Cable
Digium D40, D50, and D70  


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