The 821 VoIP phone unites two of the biggest requirements for modern telephony in one device, extraordinary VoIP technology and design. The SIP-based phone is optimized for professional use, from a technical standpoint as well as from its look. The 821 comes with an integrated Gigabit Ethernet switch on board which enables connected devices to benefit from all modern network installations. With its high-resolution TFT color display, this offers a brilliant depiction of call lists, phone directories, and caller information via the integrated XML mini browser. The wideband technology - klarVOICE HD Audio quality - makes the user feel as if the caller were in the same room.
In hands-free mode, a Class D amplifier reliably suppresses interference noise. Moreover, 821 the offers all conveniences customers have come to expect from our phones. Furthermore the includes the use of secure VPN as well as TLS and SRTP, making it almost impossible to hack or misuse data. The 821 is ready for WLAN through the USB type-A connector on the phone (adapter not included). The 821 also offers a wide range of functions particularly relevant to the business world, like 3-way conferencing, multiple ringtones, and up to twelve different identities.
The user interface was designed for clarity and intuitive operation. All keys are extremely easy to see and reach from almost any angle, whether the 821 is set up with the footstand in high (55 degree) or low (33 degree) position. The look of the 8xx series was designed in cooperation with one of the most renowned German industrial designers. The 821 gives the discerning user comfortable access to numerous business functions that have become the matter of course in todays telephony.