Avaya 9611G IP Phone. Here's some useful information about this device: This is a mid-range VoIP phone designed for connected offices. It features a 3.5-inch color display and an intuitive interface. It has 8 line buttons with dual-color LEDs and 4 programmable keys. It includes features such as phonebook, call history, and voicemail access. It allows the connection of up to 3 button modules to expand call appearances. It is compatible with the Avaya IP Office 12.0 system. It offers Gigabit Ethernet connectivity and support for wideband audio codecs. It can support Bluetooth and DECT with an optional adapter.