The TCI 01 - Telephone Interface Box by Sennheiser electronically takes your phone on and off the hook when using a BW or DW series wireless headset system with a phone featuring an electronic hook switch. It is to be used in place of the manual HSL 10 handset lifter.
- Electronically takes your phone on and off the hook
- Compatible with the BW 900, DW Office and DW Pro1/Pro2
- Used as an alternative to the manual HSL 10 handset lifter