Product DescriptionYou have the system but no features? Add the feature package 1 to your existing Merlin 206 or 410 control unit and get conference call, speaker phone (requires BIS phone) as well as other features.
- 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