Features
- 2-line x 24-character LCD display
- 24 programmable line/feature buttons
- 4 navigation keys for browsing feature menus and programming
- Dedicated headset jack
- Displays Caller ID and internal extension information
- Provides such features as hold, transfer, conference, redial, and mute
- Built-in 2-way speakerphone
Compatibility
- The 4424D+ Telephone is compatible with Merlin Magix and Avaya IP Office systems.
- It requires a station port on a 412 TDL, 024 TDL, IP403, IP406, IP406V2, IP400 DS16, or IP400 DS30.
Includes

Refurbished
Library
Avaya 4424D Plus Telephone Users Guide.pdf
Avaya 4400 Series Phones.pdf
Avaya Magix 4400 Series Phones Data Sheet.pdf