Features Yealink W52P is a SIP Cordless Phone System designed for small business and SoHo who are looking for immediate cost saving but scalable SIP-based mobile communications system Combining the benefits of wireless communication with rich business features of Voice over IP telephony User can benefit from freedom of movement, lifelike voice communications, multi-tasking convenience, professional features like intercom, transfer, call forward, 3-way conferencing, PoE This system works with widely-known Broadsoft, Asterisk, 3CX and supports quick and easy configuration Up to 4 simultaneous calls, 5 handsets and 5 VoIP accounts