The need to raise the handset depends on the design of the phone, not the headset or the amplifier/switchbox. Constantly picking up and hanging up your handset can be really annoying, so if your phone does not permit on-hook calls, use our inexpensive and
handy Handset LifterUpper.
Many of our cordless headsets are sold with a remote handset lifter so you can start and end calls when you are far from your phone, just by tapping a button on your ear.
The design of the phone you are using may provide extra conveniences. With many Panasonic KX-T series
"system" phones, for example, you will be automatically connected to incoming intercom calls, without touching any buttons; and this will work even if you are using a cordless headset far from your desk. These phones also allow headset operation with the handset on-hook. CLICK
for info on Panasonic phone systems.