The 4406D is a multi-line digital telephone with 6 line/programmable buttons, and buttons for Volume, Hold, Conference, Transfer, Redial, Speaker, and Mute. Also includes a 2-line x 16-character display for visual feedback and prompting only (no access to select items from display) and a speakerphone.
- The Avaya 4406D+ Telephone is compatible with Merlin Magix and Avaya IP Office systems
- When used with Merlin Magix, it requires a digital station port on a 412 TDL or 024 TDL module
- Can be used on Avaya IP Office IP400 (IP403, IP406, IP406 V2, IP412) control units running IP Office R4.0 or lower; requires available digital station port on control unit or on external expansion module (IP400 Digital Station 16, IP400 Digital Station 30)
- Not compatible with base card digital station ports on IP500 or IP500 V2 control units; can be used with IP500 external expansion modules - IP500 Digital Station 16/16B, IP500 Digital Station 30/30B