NEC 2400IPX - Manual (Page 11)

HSET (Headset)
Allows the user to go off- and on-hook when
using the headset.
RLS (Release Key)
Allows the user to release the current call when
using the headset, without waiting for the party
to hang up.
CKEEP (Eight-Party Conference
Retrain)
Allows all outside parties to stay on a
conference when all internal parties hang up.
GPICK (Call Pickup – Group
Enhancement)
Allows the user to answer any ringing station
within the user’s expanded call pickup group.
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*NEC-405 NEAX2400 UG #2 1/22/03 2:42 PM Page 9