i20S SIP Audio Door Phone

The design of i20S IP Door phone are based on experience and knowledge of Fanvil IP phone development.i20S are using standard IP/RTP/RTSP protocol for voice transmission and enjoy the advantages of full range of compatibility.i20S have a variety of enterprise-level features and compatible with lots of major platforms, such as 3CX, Asterisk, Broadsoft, Elastix, etc.