Polycom

APP-51 is for Polycom SoundPoint® IP 320, SoundPoint IP 321, SoundPoint IP 330, SoundPoint IP 331, SoundPoint IP 335, SoundPoint IP 430, SoundPoint IP 450, SoundPoint IP 550, SoundPoint IP 560, SoundPoint IP 650, SoundPoint IP 670, VVX500, VVX1500

If your model is not listed above, you can use this Handset Lifter