The NORCO iPBX / WiPBX combines complete IP-PBX features with standards based SIP for telephony solution that can stand alone or integrate with existing phone systems. NORCO iPBX and NORCO WiPBX is an embedded system with built-in SIP Proxy Server and NAT router for SOHO user not only provide network function but also provide an IP PBX feature in office. WiPBX not only provide IP PBX feature but also a Wireless AP for Wi-Fi Client can access wireless network.