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Avaya 5621SW IP Telephone (700385982)

The Avaya 5621SW is a full-featured IP phone that provides 24 programmable line and feature buttons.  It is an excellent choice for salespeople, executives, and operators.
Certified Refurbished - Factory finished casing, NEW handset, NEW handset cord, and NEW button set!
Please call for availability

Avaya 5621SW Features

  • 7 line x 29 character backlit display for improved contrast; standby mode turns off backlight after time-out
  • 10 Fixed Feature Buttons - Conference, headset, transfer, drop, redial, speaker, hold, mute, volume up and down
  • 24 Programmable Feature Buttons
  • Message Waiting Indicator
  • Speakerphone - Two-way speaker and microphone
  • Embedded Applications - Speed Dial List (104) and Call Log (Missed, Incoming, Outgoing). Also includes WAP WML browser.
  • Upgradeable Firmware - For future compatibility
  • Expansion - Supports the EU24BL DSS expansion module (with additional Avaya 1151 series power supply)
  • Ethernet Ports - Two port full-duplex 10/100 BaseT Ethernet switch for PC pass through connection
  • Codecs - G.711, G.729a/b QoS
  • Options - UDP Port Selection, DiffServ and 802.1p/q (VLAN)
  • IP Address Assignment - Static or dynamic SNMP Support
  • Integrated Headset Socket, 8 Personalized Ring Patterns, Hearing Aid Compatible
  • Supports Russian and multi-byte characters (Chinese, Japanese, and Hebrew)


  • IP500/403/406/412/Small Office Edition - Version 1.3 or higher with available IP Station Port
  • Power Supply - IEEE 802.3af Power over Ethernet (PoE) or individual power supply unit (Avaya 1151 series - see drop down option above)

Accessories and Related Items
Axtel PRO Headset Package for Avaya Digital and IP Phones
Avaya 1151D1 Power Supply (700434897)
Axtel PRO Headset Package for Avaya Digital and IP Phones

New: $62.99
Headset Model
Phone Model

Avaya 1151D1 Power Supply (700434897)

Certified Refurbished: $14.99
New: $35.99

Video Overview: Avaya 5621SW IP Phone
Video Overview: Avaya 5621SW IP Phone

Avaya 5621SW Quick Reference Guide

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