[OFFICERUNNER DISCONTINUED] [DW PRO1 DISCONTINUED] TO END THE CONFERENCE CALL - Guest headsets can exit the call by turning the headset off (PRESS CALL CONTROL) - When the MASTER headset ends the call all headsets will drop out. Chances are they’re turning their headset off. Is there a solution if they’re using a lifter? Absolutely! The lifter must remain in the up position - remember to keep it up. Make sure they drop the call using the buttons on their phone, not the headset.