Cloud-based communications system

A communications system among users, the system comprising:

• a server;
• and
• a plurality of devices, each of the devices associated with one of the users and comprising:
• a transceiver configured to communicate with the server;
• a light;
• and
• one or more inputs;
• wherein one of the devices is configured to be linked with other ones of the devices, each of the other ones of the devices associated with a different unique color selected by the user associated with the one of the devices from a plurality of colors;
• wherein the one of the devices is configured to transmit a message to a particular one of the other ones of the devices by (1) the user associated with the one of the devices selecting, using the one or more inputs and the light, the different unique color associated by the one of the devices with the particular one of the other ones of the devices, and (2) the one of the devices transmitting the message to the server;
• wherein the server, upon receipt of the message, is configured to determine which of the other ones of the devices is the particular one of the other ones of the devices to which the message is intended;
• and
• wherein each of the other ones of the devices is configured to connect with the server, and upon the particular one of the other ones of the devices connecting with the server, the server is configured to transmit the message to the particular one of the other ones of the devices.