The Avaya Partner 18D Series 2 is a digital display phone designed for use with Avaya’s Partner phone systems. It’s a popular choice for small to mid-sized businesses due to its reliability and feature set. Here's a breakdown of its key attributes:

📞 Core Features

• 2-line x 24-character backlit display for caller ID and system info
• 16 programmable buttons with dual red/green LEDs for line or feature access
• 2 fixed intercom buttons for internal communication
• Full-duplex speakerphone with hands-free answer on intercom (HFAI)
• Message waiting indicator, mute, hold, transfer, and conference buttons
• Volume control for ringer, speaker, and handset (14-step adjustment)
• Auxiliary port for connecting tip/ring devices like fax machines or answering machines

🧩 Compatibility

• Works with Partner, Partner Plus, Partner II, and Partner ACS systems
• Also compatible with IP Office Quick Version or Basic Edition using IP500 ETR 6 Base Card

🛠️ Physical Specs

• Adjustable desk stand with 3 tilt levels
• Wall-mountable