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The 5621SW IP AVAYA phone provides the same advanced calling features and functions as traditional AVAYA telephones. This stylish phone incorporates a number of convenient features, such as a built-in headset jack, message waiting indicator, easily readable displays, and multiple programmable feature keys.  The 5621SW features:

• 7 line x 29 character backlit display for improved contrast; standby mode turns off backlight after time-out 
• 10 Fixed Feature Buttons 
• 24 Programmable Feature Buttons 
• Message Waiting Indicator 
• Two-way hands-free speaker and microphone 
• Upgradeable Firmware 
• Desk or Wall Mountable Two port full-duplex 
• 10/100 BaseT Ethernet switch for PC pass through connection 
• Static or dynamic IP address assignment 
• Integrated headset jack
• 8 Personalized Ring Patterns
• Hearing aid compatible
• SNMP Support
• Supports Russian and multi-byte characters (Chinese, Japanese, and Hewbrew)

Compatibility:

• IP Office - IP500/IP403/406/412/Small Office Edition - Version 1.3 or higher with available IP Station Port
• Powered via 802.3af PoE or local 1151 power supply - available separately, below

Resources: Product Brochure (PDF)

Accessories include:

• AVAYA 1151D1 Power Supply (700434897)
• AVAYA handset cord - exact replacement

This item is known by the following part numbers: 5621SW, 700385982