Using The Optional Headset - Panasonic KX-TS2305HGW Operating Instructions Manual

Using the Optional Headset

"
Plugging the optional headset into the unit allows a hands-free phone
conversation. Please use only a Panasonic KX-TCA89EX.
Connecting the Optional Headset to the Unit
Connect the optional headset to the headset jack as shown below.
Headset Jack
Hook
If you want to have a normal conversation, disconnect the headset.
23