Polycom   SoundPoint IP 430, 501, 601 SoundStation IP 4000 SoundPoint IP 320, 330 SoundPoint IP 321, 331, 335, 450, 550, 560, 650. 670 and SoundStation IP 5000, 6000, 7000 VVX 101, 150, 201, 250, 300, 301, 310, 311, 350, 400, 401, 410, 411,... Read More