«echo charlie» is a digital intercom system with a wide range of additional functions not offered by conventional systems. It can send ring tones, as well as messages. It also helps visitors navigate their way around your premises, and facilitates internal staff coordination. Registration is easy through the app (iOS and Android) or through the web browser of your choice. Set up a trial account with just a few clicks and try the full version for free for the first three months. Compared to widely-used wired solutions or paging systems, «echo charlie» can be used on any digital channel. And all types of mobile devices like smartwatches and tablets can be connected to the communication system.