The Avaya J139 IP Phone provides a modern, connected, personalized experience for customers and addresses the need for secure, reliable voice communications for users within large enterprises and small and medium—sized companies. It is well suited for users that need only the most commonly used voice features. It provides a new level of simplicity in using features such as Hold, Transfer, Conference, Forward, and Call Park / UnPark.

• 2.8” (diagonal) color display—320 x 240 pixels Multiple line phone with four red / green line / feature indicators around display
• 4 Context Sensitive Soft Keys
• Hard buttons for phone, messages, contacts, history, home, navigation cluster, headset, speaker, volume, mute
• LEDs for speaker, mute, headset, message, history
• Wideband audio in handset and wired headset
• Full duplex speakerphone & Handset
• Ergonomic hearing aid compatible handset supports TTD acoustic coupler
• Message waiting indicator
• Mute key with optional mute alerting
• IC call alerting with 360—degree visibility
• Rich, classic, alternate, and downloadable ringtones
• Dual—position stand, optional wall—mount stand
• Gigabit Ethernet (10 / 100 / 1000) line interface
• Second Ethernet interface 10 / 100 / 1000 Mbps
• PoE Class (IEEE 802.3af) registers as class 1 device and supports 802.3az
• Optional AC to 5 volt power supply