The Plantronics 2.5mm plug Panasonic cable is a specialist cable from Plantronics made specifically to connect to the Panasonic KX-T7600, KX-T7730 and KX-T7735 range of system phones.
The Panasonic cable has a 2.5mm jack plug on one end, which connects directly into the Panasonic telephones headset port. On the other end of the Plantronics cable is an RJ11 plug and this connects directly into any Plantronics wireless headsets base unit, for example the Plantronics CS60, CS70N and CS351N or alternatively into a Plantronics M12 Vista amplifier.
Go Wireless
This then allows the Panasonic phone user to attach a Plantronics wireless headset system such as the CS60 or CS70N or alternatively attach a Plantronics amplifier such as the Vista M12, which will then allow the connection of a Plantronics corded headset instead.