Avaya IX Wireless Handset 3730 is a durable DECT handset that facilitates efficient and dependable wireless telephony. It features enterprise-grade telephony, local phonebook, access to central phonebook, voicemail and so much more. The handset has a TFT color display with 262K colors. The handset display size is 1.8 inches, with resolution of 128 x 160 pixels. The display backlight helps to operate and use the handset in complete darkness. It has an internal phonebook with a storage capacity of 250 contacts, as well as duplex loud speaking function to enable use as a conference phone at 1.5m distance or closer to the handset. A 3.5mm jack for connection of headphones and a display illuminated in color with a long battery life and many hours of standby ensure the practicality of use for all users.