Fanvil H2U Red Compact IP Phone for emergent call with conspicuous RED color; Delicate and fashion outlook; Easy installation and configuration; Cost-effective model & Environmental friendly design; 10 speed dial keys----long press to achieve speed dial; 1 programmable DSS keys; 10/100Mbps Ethernet & POE power supply; Compatible with major platforms: Asterisk, Broadsoft, 3CX, Metaswitch, Elastix, Avaya etc.