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




Telephone Model Wired Headset Adapter
Cisco SPA Series QD to 2.5 mm Cord for Cisco SPA
SPA 303, 303G, 501G, 502G, 504G, 508G, 509G, 512G, 514G, 525G, 525G2  
Cisco 6900 Series IP Headset Interface Cable for Cisco Phones
6921, 6941, 6945, 6961  
Cisco 7800 Series IP Headset Interface Cable for Cisco Phones
7821, 7841, 7861  
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  
Cisco 8800 Series IP Headset Interface Cable for Cisco Phones
8811, 8841, 8851, 8861  
Cisco 8900 Series IP Headset Interface Cable for Cisco Phones
8941, 8945, 8961  
Cisco 9900 Series IP Headset Interface Cable for Cisco Phones
9951, 9971  
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
Polycom VVX  

Polycom VVX 300/310, 400/410 (running UC software 4.1.4 or later). 

Polycom VVX 500 (running UC software 4.0.1 or later). 

Polycom VVX 600 (running UC software 4.1.2 or later). 

Polycom VVX 1500 (running SIP software 3.0 or later).

Polaris Cable
Digium IP Polaris Cable
Digium D40, D50, and D70  


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