Yealink SIP-T31W is a business IP phone for VoIP calling, identified by manufacturer article number 1301039. It supports up to 2 VoIP accounts and local 5-way conferencing, giving a desk phone options for handling calls and group conversations.
Built-in dual-band Wi-Fi operates at 2.4 GHz and 5 GHz, and PoE support allows network-based power. The 2.3-inch backlit LCD has 132 × 64-pixel resolution for viewing phone information. HD handset and speaker audio are complemented by Smart Noise Filtering.
The phone has 2 RJ45 10/100M Ethernet ports, along with RJ9 ports for a handset and headset.