Avaya 5610SW IP Telephone (700381965) The Avaya 5610SW IP telephone 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. Avaya 5610SW Features 5 line x 29 character display (168 x 80 pixel, 4-grayscale) 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 Socket, 8 Personalized Ring Patterns, Hearing Aid Compatible, SNMP Support