Avaya Merlin Feature Package 2 (Refurbished)Avaya Merlin Feature Package 2. More Information Plug in cartridge convenience 5 party conference call On hook dialing, call transfer, hold reminder, group listening Prevents outgoing calls on individual phones Automatic outside and intercom dialing Last number redial, automatic line selection, do not disturb Ringing options Personal and system wide 3 digit speed dialing Privacy Personalized Ringing Call pickup