This is a coiled cable has a QuickDisconnect plug on one end and a male modular RJ-9 plug on the other end. It is specially wired to make Plantronics headsets sound louder on phones with a built-in amplifier such as the Polycom VVX deskphones

Key Features:

• Polycom VVX VoIP phone compatible**
• 10' coiled
• Also know as the Plantronics U10P cable
• Smoky gray RJ9 color plug.
• two year warranty

**Compatible with Polycom IP phones (IP300, IP301, IP335, IP430, IP500, IP501, IP550, IP600, IP601, IP650, IP670, CX300, CX600, CX700, VVX400, VVX410, VVX500, VVX600, VVX1500) with a dedicated headset jack, you can use this U10P cable with the Plantronics H-Series Headset.

** It's also compatible with following Digium Phones: Digium D40, Digium D50, Digium D70

Old Poly part # 27190-01

New HP part # 784Q5AA