• 48 speed-dial directory
  
• 48 call log that records incoming answered, incoming unanswered, and outgoing calls.
  
• 12 system call appearance/feature buttons
  
• 5-line x 29-character Liquid Crystal Display (LCD)
  
• Downloadable firmware (flashware) upgrades

• 104 speed-dial directory
  
• 100 call log that records incoming answered, incoming unanswered, and outgoing calls.
  
• 24 system call appearance/feature buttons
  
• 7-line x 29-character Liquid Crystal Display (LCD)
  
• Downloadable firmware (flashware) upgrades

The Avaya 4610 IP Telephone is a full duplex IP ready speaker phone featuring a 5-line, 29 character grayscale display, 24 programmable call appearance / feature keys and 9 fixed feature keys.

The Avaya 4610SW IP includes a message waiting indicator, a built-in headset jack and a full-duplex speaker phone for audio conferencing. The 4610 is Microsoft NetMeeting compatible and offers built-in multiple language support for global user application.

The Avaya 4621 SW is a full duplex IP speaker phone with Auto Echo, Ethernet connectivity and multi-language capabilities. Ideal for international telecommuters, supporting everyday office features, including conferencing through Microsoft NetMeeting.

• Digital Display
  
• 2-line, 24-character Liquid Crystal Display (LCD)
  
• 8 Programmable Buttons
  
• 4 Soft Keys
  
• Handsfree
  
• Headset Compatible
  
• Conference, Transfer, Hold, Redial, Speaker and Mute Fixed buttons
  
• Built-in 2-way speakerphone

• Digital Display
  
• 2-line, 24-character Liquid Crystal Display (LCD)
  
• 16 Programmable Buttons
  
• 4 Soft Keys for menu functions
  
• Built-in 2-way speakerphone
  
• Handsfree
  
• Headset Compatibl

• Digital Display
  
• 2-line, 24-character Liquid Crystal Display (LCD)
  
• 16 Programmable Buttons
  
• 4 Soft Keys for menu functions
  
• Built-in 2-way speakerphone
  
• Handsfree
  
• Headset Compatibl

• Digital Display
  
• 2-line, 24-character Liquid Crystal Display (LCD)
  
• 16 Programmable Buttons
  
• 4 Soft Keys for menu functions
  
• Built-in 2-way speakerphone
  
• Handsfree
  
• Headset Compatible

• Digital Display
• Handsfree
• 24 Programmable Buttons
• Headset Compatible

• 24 programmable call appearance/features buttons
  
• 2 line, 24 character LCD shows called party/calling party ID (where available), date and time
  
• 4 'soft keys' for menu functions and 4 'navigator' keys for menu, next, previous & exit
  
• Fixed buttons for conference, transfer, hold, redial, speaker & mute
  
• Built-in 2 way speakerphone
  
• Group listening (optioned by user)
  
• Group paging (if administered)
  
• Whisper paging (if administered)
  
• Accepts XM24 expansion module for 24 additional programmable buttons (requires auxiliary station power)
  
• Built-in headset jack (requires 3124-HIC interface cord)
  
• Ribbon connector for the additional 100A analog interface module (requires auxiliary station power)