This is a Plantronics adapter
cable that allows any of the Plantronics CS500 series: Plantronics
Plantronics CS540 and the Plantronics Savi 700
Plantronics Savi W710,
Plantronics Savi W720,
Plantronics Savi W730 to
be used with a home analog phone line.
Note: Not compatible with
older CS50, CS55, CS70n, CS351, CS361, 510S wireless headsets.
Note: wall splitter not
included in the TR-11 package. The device is labeled as TR-1.
For more information see