Web User Interface
V8: Advanced - Behavior(Tab) - Phone Behavior (Section) -> Go to Call-Monitor on Activity
Phone User Interface
When any of your monitored lines shows an activity (other than idle), the phone will automatically display the call-monitor state. This behaviour is simular to the setting Call Pickup and replaced it since version 8.7.2 on all phones models.
See also pui_states_allowing_state_switch_on_activity and goto_virtual_keys_state_on_activity.