Cisco 7800 series phones are full-featured business phones with encryption, HD voice quality, high-resolution large display based on SIP. They can be height-adjusted in two positions and offer direct keys for the most important operating functions (hold, conference, forward, voicemail, directory, hands-free, headset and mute). The other functions can be easily accessed via softkeys. All phones can be wall-mounted and have a replaceable cover plate so that they can be visually adapted to the office environment.‍