The Fanvil i20S is a SIP audio door phone designed to manage building access and communication through a secure, network-based system. It supports two SIP lines and integrates seamlessly with platforms like 3CX, Asterisk, Broadsoft, and Elastix, making it a versatile choice for various office or residential setups. To ensure clear communication, the device features a built-in 3W speaker equipped with acoustic echo cancellation, which helps eliminate noise during conversations. Constructed from a blend of metal and plastic in a black finish, this intercom is built to withstand the elements with an IP65 rating, meaning it remains protected against dust and water. Its compact dimensions of 9.3 x 16 x 3.5 cm and light weight of 0.3 kg allow for easy wall mounting. For security, you can manage entry using the integrated RFID card reader, a keypad for remote opening, or through entrance guard control. The system is powered via PoE IEEE 802.3af through its single 10/100 Mbps Ethernet port, though it can also be used with an external adapter. It comes as a kit including the intercom and necessary tools, providing a reliable solution for those who need a durable, professional-grade entry system that balances security with clear audio communication.