The design of i18S IP Video Intercom are based on experience and knowledge of Fanvil IP phone development. i18S are using standard IP/RTP/RTSP protocol for voice transmission  and enjoy the advantages of full range of compatibility. i18S have a variety of enterprise-level features and compatible with lots of major platforms, such as 3CX,Asterisk, Broadsoft, Elastix, etc. The i18S IP Video Intercom is designed for operation in indoor conditions. The robust mechanical construction offers protective coverage rating against dust and water (IP65). The i18S is economical devices with triple function (All in 1): Access Control, Intercom and Broadcasting