Plantronics + Polycom. Now together as Polycom

Voice
Business Media Phones (CCX Series)
DECT IP Phones
QSX
Interop Solutions

SoundStation IP 4000

The SoundStation IP 4000 is being discontinued and will no longer be available for purchase after 08/20/2009. Support for the product will be available until 05/31/2014. The SoundStation IP 4000 has been replaced by the SoundStation IP 6000 and 7000.

View End of Life Policy

PLEASE NOTE: 
Combined download should be used where phones may be running pre-4.0 BootROM. 
Split download file is recommended, but requires that all phones are running BootROM 4.0 or newer.