The D-Link DVG-N5402GF is a versatile VoIP wireless router designed to integrate high-speed internet and digital telephony into a single device. It supports Wi-Fi speeds up to 300 Mbps on the 2.4 GHz band using two external fixed antennas, ensuring a stable connection for your mobile devices throughout your home or office. For wired connections, it features four Gigabit LAN ports and dual WAN options, including an SFP port and a copper port, which provide flexibility in how you connect to your service provider. This white compact unit, measuring 222 x 146 x 33 mm, also functions as a telephone gateway with two FXS ports for connecting analog phones. It handles voice calls with professional-grade features like echo cancellation and an adaptive jitter buffer to keep audio clear, while supporting various SIP functions such as three-way conferencing, call forwarding, and speed dial. A USB 2.0 port is available for optional host connectivity, and the front panel includes a comprehensive set of LED indicators to help you monitor your network and phone status at a glance.