NEC NEAX 2400 IPX User Manual page 12

Optional Key and lamp
ADDITIONAL FUNCTION KEYS
EMG (Emergency Key and Lamp)
Allows the attendant to answer incoming calls from a station where the receiver has been off hook for a prede-
termined amount of time.
BV (Busy Verification Key and Lamp)
Allows the attendant to monitor or enter into a station-to-station or station-to-trunk connection.
TRKSL (Trunk Selection Key and Lamp)
Allows the attendant to individually select a desired trunk.
– 7 –