The Grandstream HT801 v2 is a compact single-port analog telephone adapter, ideal for creating a high-quality and manageable IP telephony solution. It supports 1 SIP profile via a single FXS port and a 10/100 Mbps Ethernet port. Call and account security is ensured by TLS and SRTP encryption technology. The HT801 offers automated provisioning options with TR-069 and XML configuration files and allows for 3-way voice conferencing. In the event of a lost connection to the main server, the failover SIP server automatically switches to the secondary server. It supports T.38 fax for IP faxing and a wide range of caller ID formats. When used with the Grandstream UCM series of IP PBX, it allows for zero-touch provisioning. Advanced telephony features include call transfer, call forwarding, call waiting, Do Not Disturb mode, voicemail indication, multilingual prompts, and a flexible dialing plan. Item dimensions: 10 x 10 x 3 cm. Package dimensions: 6.71 x 13.41 x 19.41 cm. Package weight: 0.299 kg. Color: gray/blue. Material: plastic. Battery powered, compatible with Wi-Fi networks.