Fanvil X303-2 Wire IP Phone, 2.4-inch Color, RJ11 Interface and Supports 2-Wire Power, HD Voice, 6-Party Conferencing, 4 SIP AccountsFANVIL X303 2 Wire IP Phone Fanvil X303 2 Wire IP Phone is an upgraded version of the original IP phone, featuring a brand new power and network supply method using a 2 wire connection. This allows for complete reuse of old wiring while offering high definition voice, a 2. 4 inch color display, support for 4 SIP accounts, 2 wire power and network supply, multi party conferencing, and other rich features. Additionally, it supports external EHS wireless